I really can’t think of a time where I have. But I also don’t see myself making factual claims about anything without having sufficient first hand experience. If I get into any kind of online “argument”, my contribution is basically only going to be logic, not facts. The other person brings the facts and we walk down the logic tree together.

The noise you add won’t even register. No two people are going to half-ass it the same way, so if you average everyone’s responses, the correct answer comes out.

You can make accounts with temporary emails through VPN on any website. This isn’t something unique to, or even new to Twitter.