User blog comment:YirbFpYxzhXdxfk/Please do NOT turn certain communities into UCP!/@comment-1038387-20200818131748

Keep in mind, the plan is to switch off the Legacy platform once the porting is done. So if some wikis don't get ported over? That means they get removed anyway when the platform they're on gets yoinked from under their feet.

UCP is a huge risk, ands a huge investment. They know that. They obviously do not expect as many hissyfits as you. Even if the vocal minority were to leave, where would they go? The other wikifarms do not have the same features as Legacy, nor the popularity.