I was curious about the so-called drama, since I hadn't heard about any of it. So I did a little digging. I found this:
https://www.reddit.com/r/scanlationdrama/comments/bvozl5/meraki_scans_boycott_md_due_to_mangadex_staff/
So, the tl;dr is that Hatigarm was scanlating a series, then Facepalm started scanlating it as well, and they put this as their credits:
https://i.imgur.com/Fb1QfXH.png
Meraki is friends with Hatigarm, and they got upset by this and then decided to leave MangaDex (deleting all their chapters). The drama originated here:
https://mangadex.org/thread/88747/1
Honestly, that thread looks really tame to me. You have people on both sides (pro-donations and anti-donations) arguing their points in a constructive and thoughtful manner.
Personally, I don't think Facepalm is in the wrong here. Yeah, their credit page is crude (in multiple ways), but they're not attacking or insulting anybody (if they did they would be breaking MangaDex's rules). And their "anti-donation" beliefs are shared by many other people as well.
The only thing that seems odd to me is Meraki's claim that they weren't allowed to comment on the credit page. If that's true, then I think that's wrong: people should be allowed to comment on the credit page (assuming they stay within the rules while doing so). And since many other people were allowed to comment on the credit page, that makes me feel like Meraki is lying or exaggerating the situation.