Comment by quickthrower2

There are a few types of people on twitter.

1. People building their business/brand. They are not going to like this, since the reason they are on Twitter is to build an audience. The idea that you share your handle from Twitter to Facebook .... and vice versa is good for everyone.

2. People who want to speak freely. Well you are telling them they can't offer another way to contact them. What if they are the last refuge for someone under oppression? Twitter is blocked in their country but nostr isn't (it would be hard to block)?

There are probably other groups as well. This move just makes Twitter a bit useless, which is much much worse than controversial for the site's popularity.