Eh, I'd still do the simple "Edited MTL" in the language text, since I really don't think DMTL is as much an established term as you think it is (at least in the main game section). Though you have the full info in the translator notes, so that does help.
Though at the same time it's almost a fruitless endeavour, since most people who really care about / hate MTL will only look at the three letters and either post "How good is the MTL" or "WHY MTL! I HATE!"
The vast majority of people here are lurkers, especially because we are sharing lewd stuff here.
They just grab the downloads and leave happy. You can clearly see that by viewing the download statistics of certain hosters.
That's why it "seems" like there's a lot of negativity towards MTLs, because only a certain type of person would feel the need to share their opinion in general.
The truth is even raw Google-Translate MTLs are appreciated by the majority of people, as long as they don't cause bugs, because people don't even know, or care to learn, about stuff like MTool. Also simply not everyone here is a native English speaker, or actually cares about English grammar.
But we're getting a bit too off-topic here, so let's stop.
Edit: Btw, please do not respond to these people. Their opinion literally doesn't matter and it will just turn this thread into an off-topic mess.