I had opened issues and MRs with projects that David Lord was a maintainer (since he's been handling lots of Pallet Team's open source projects now). Wasn't very impressive with his "my way or the high way" approach.
Take a look them yourself:
https://github.com/pallets/flask/issues?q=is%3Aissue+is%3Acl...
I am quite disgusted by his self-congratulatory tweet like that, TBH.
Those tickets that the community posts questions and asked for help, he just shut people down.