Princess and Witch Trainer are counted as complete on this site.
Yeah, but Witch Trainer Silver, the thread that actually gets all of the activity for that game, is not (less than 200 posts vs 4k+). Once again, searching for the completed tag misleads.
And both have Genie as a paunchy old man. You can make him train in PT to gain muscle and lose the paunch. But you can't argue that he's old. He even calls himself 'Old Man'..
He's not an Adonis or pretty-boy, but he's far from being designed to be actively repulsive like the actual fat old man characters are.
Alan Rickman and
Generic Robed Man Loosely Based On His Aladdin Appearance are a far cry from that and you know it. And of course he's old, he's a genie, he's been in that lamp for centuries? Despite this, he's far from the oldest looking character in those games.
I do follow FET where you're currently playing an old man in Book 4 to corrupt Korra.
Ok, so, like a quarter of the game? And for the rest of it?
DmD is a bit iffy on calling the mc an old man, or not. He's in his late 40's, I believe, so that comes down to personal opinion.
SU...How the hell old IS Lex, anyways?
You are getting caught up on the age, I think? Like, nobody is complaining about Pete because he is "too old". Even if 45~ish is "old" (I don't think it is, as you say it is personal opinion), the DMD main character is, at worst, conventionally alright looking and in good shape for his age. He's not got rolls of fat. He's not one pair of tusks from being able to play an Orc in Lord of the Rings. I have given up on SU ever being good, but the same is true for Lex, even though as far as I recall his age is never stated (at least when I played). An attractive 40-ish man (or potentially older, see the trope of the silver fox) is a completely different proposition to the fat old man trope. Just being a bit older than your average protagonist isn't enough to qualify. Hugh Laurie is 53, making him older than any of the characters in the examples I gave, except for a body you posses for 25% of 4ET (and Genie who is a magic spirit).
But compare him to the actual prototypical fat ugly bastard
and you'll see there's a stark, obvious difference. While the posters complaining about having to play as Pete might not be totally thrilled to play as Hugh Laurie either, they certainly wouldn't be complaining nearly as much. Again,
nobody is complaining about Pete because he is "too old". They are complaining because to them, he is unappealing to look at or imagine having any type of sex, and his writing in his source material has been pretty one-note with a shitty personality and all the dynamism of a doorstop.
And its a perfect metric because, as you said, its more popular there and thus it would be a larger part of the average. So whether I use 'complete' or not, the Japanese ones still hold a larger portion of the average. That's what 'average' is, after all.
I don't think that's true at all? Everything I see points to the Japanese ones not even coming close to holding such a portion of uploads, and if it's a question of which games are more popular (as much as F95's search allow you to determine that) they get destroyed. Of the top 40 games by thread postcount (F95 doesn't seem to let you sort by views? why?) with the corruption tag, there is one (1) Japanese game, Teaching Feeling, which in fact does not even feature a fat old man. The rest are entirely Western. From 40 to 100 there's like 3. And the proportion of those games, Western or Japanese, that feature a fat old guy is also pretty low (even counting a bunch of games having them as incidental scenes - i.e. Dreams of Desire has that one scene etc.).
Also, I've seen several games in the list where 'corruption' feels like a false tag. Or is only a small number of the characters. MotH, for instance. After playing through myself, I can only remember the older sister and mother being actually 'corrupted'. Though the mother is only corrupted into giving in, since she was already sexually interested in the mc and was beating herself up over it. The younger sister was gleefully hedonistic and didn't take any corrupting to start 'playing' with the mc. The cop was already corrupt. The younger sister's friend was already curious about sex. So the corruption tag in that game, while accurate, is still limited in scope. I haven't played it in a long time, so if there are more you actually corrupt I don't remember them.
There are also games that use a corruption tag when its actually just the mc making lots of girls rely on and fall in love with them. That isn't corruption, but still gets the tag. Which skews the average, but only by a small amount.
I'm not sure if this is really the place for a discussion on the merits of/possible improvements to F95's tagging system. Yes, sometimes games are tagged only for partial content, but that content is still present. And if I may say so, you're the one who first based their argument off a search relying on tags.
So, yeah. The largest average percentage of corruption type games feature fat, old, or fat and old men. And most are Japanese. The number of western ones are rising, but they're still a long way off since Japan keeps making more.
As I indicated above, on F95 (i.e. games available in English) this simply isn't true. If you want to count untranslated games I guess you can, but that's a completely different conversation and not the direction you started in with your corruption tag search.