For those out of the loops, check out this article
The TLDR version is that Waid has apparently bullied Antartic Press into not publishing a comic book by a Youtuber critic who had been critical of Waid's work at Marvel.
The word on Youtube is that Marvel has made Waid delete his Twitter account, but I think the damage has been done.
After this, I can't see him working at Marvel again as, if this is true, he's not only been an asshat, but he's put Marvel in a potentially wonky situation with a possible lawsuit - given that one of their employees has tried to sabotage through intimidation, an independent creator product being published.
Isn't the "critic" just a douchebag who likes to harass people online? Not sure what the problem is.