For me...I'm generally not impressed with
Dark Crisis or anything leading up to it.
Williamson wrote some Diana appearances in his
Flash run where she's only there to get wrecked by Reverse Flash.
Annoying, but so did the rest of the League because getting their asses kicked is all they're good for anymore.
But, for me, the kicker was finding he was responsible for that awful
Justice League vs. Suicide Squad mini-series. Late to the party, I know, but at the time, I ignored it because I knew it would be trash and I wouldn't have known who Williamson was. But like I said, I'm browsing through Amazon Archives and discover, "Oh, god, HE wrote that?!"
Honestly, I might've put him on my black list for this alone when it first came out. First the Justice League gets defeated and captured by the Suicide Squad and forced to work for Amanda Waller. Because of course.
Then we get this:
Those last two panels...I almost threw up in my mouth.
And that's not even the climax. Diana and the League (except Batman) proceed to get enslaved by everyone's favorite villain, Max Lord, and have to get defeated & rescued by the Squad a SECOND time.
And it ends with the League telling this group of murderers and thieves how cool they are.
So, yeah. Strike three...to the bin with you Williamson. Stay away from Wonder Woman.