oh those alternating frames as placeholders for animations are the bloody worst to me.
You play a whole VN that had an "animated" tag and finally get some smut only for you to find out it's a slideshow and there's only one other scene in the entire game that justifies the "animated" tag...fucking bullshit.
HS1 and 2 are fine by themselves, you can make great shit in them, but the default animations / modded animations barely ever work with characters that aren't bone stock
I've never seen nor played a game with "animated" tag on this site that have alternating frames or what ever it called, in fact it the other way around! I have played a lot of games that doesn't have animated tags yet they do have real animations.
Those alternating frames games do not have the animated tag (see my example in previous reply) and usually it comes as a surprise for me when you expect a stand still images / no animation from a game you just downloaded.
As of why I prefer it over real animations? it is simple:
-beats stand still images
-better than janky poor rendered animations
-easier, faster and cheaper to produce therefor bigger content and more frequent updates for new still in development games
Edit: I hate it when games has no audio (not talking about music) like effects, moaning and such... it just adds so much to the scenes