I disagree. While I understand some people must be ok with MTL, for me personally even an understandable MTL is unacceptable. Even if you can piece together some semblance of sense from MTL, it is always horribly out of place and ruins entirely of the game.
What is worse and should concern even MTL enthusiasts is that translators often skip or put at the end of their to-do list games that already have MTL. You see a game with MTL you can be sure it isn't getting proper translation anytime soon. Just.. don't do and don't support MTL. Put up translation requests for games you like and hope.
Like I said in another comment, I think MTL is acceptable in games where you have to progress to see content in a non-linear way, so in RPGM games. MTL is better than a game with 0 translation if only because it can help you to understand what the game is asking of you to progress. Just like how you can play a non-translated game and just not read it, you can also not read the MTL version besides when you need to to progress.
Also there is no reason to believe what you're saying about MTL leading to translators not translating a game, that's just an assertion. You can still request proper translation, you can still pay translators, and any translator who is passionate enough about a game and was going to do it will likely do it anyway. If anything, people seeing this game here might up the demand for an actual translation since more people view games here over untranslated ones.
I disagree with his statement as well. Sure I'd go for a manual translation any day of the year, but there's so many games that have been playable with an MTL that never, ever got any kind of manual translation support.
There just ain't that many translators out there doing this kinda thing.
Also, the Kagura's of the world ... they also only have limited capacity to do anything ya know. So if you end up having to always wait for them ... yeah, kind of an issue.
It's also never guaranteed they'll pick up just that particular game that tickles your fancy, so you might end up waiting forever. SO ... you might as well just MTL it and generally you'll get a general grasp of what needs to be understood to play the game.
Sure, I would agree that for a VN (where the only gameplay IS the text) an MTL isn't likely to be enjoyable. But for these types of RPG's I've managed to have fun with many of them despite the MTL.
Though to be fair, I've experienced some that were so broken, I couldn't even follow the story at all, also killing enjoyment, but I have a high tolerance in that regard depending on the game.
Basically ... they have their place in this space and it's unthinkable they'll ever go away for those reasons.
Heck ... For RPGM/Wolf you got MTool which auto-MTL's it for you, so you don't even need to go through TL++.
I've played a few games that way which I ended up enjoying nonetheless.