So this is why I switched to the fediverse. But to be honest, I have no idea if someone does things like that here or not. All my posts are public to everyone and machine readable. The only thing which would prevent someone of survailing users on the fediverse is it’s very small scale. It is probably just not worth the effort.
It seems that while copying the title I copied a tab \t at the beginning of the title and that seemed to have confused some clients.