User blog comment:MisterWoodhouse/Pausing UCP migrations to resolve some critical blockers/@comment-1603243-20200916220137/@comment-98.116.116.7-20201111193101

@Chubby Potato- No chat, forums being changed to discussions, increased lagginess, clumped text, jumpy screen on source editor, and comments taking a while to load. These are a few of the reasons as to why people have this opinion.