@shiri @snarfed.org
There are several reasons people are complaining. One good reason I've seen is that this will expose users to a social media ecosystem that they *explicitly* chose to stay away from for their own personal safety. This would be kind of similar to someone creating a new system to forcibly connect your server to one that your admin already blocked due to its members constantly harassing folks on your server.
Just because you can't imagine this being a problem in your own life, that doesn't mean the problems other people have should be ignored.
You can tell the developer doesn't give a shit what people actually want because he stated, in almost these exact words, if people got the warning about this bridge that an opt in would provide, no one would want to use it. Or "my product will be so unlikable, the only way people will use it is if they don't know it's there".