I disagree with you that it doesn’t work for not being meta read. I don’t want to perpetually change how I play, but occasionally I’d like to play in a different direction or at least be able to do so without being read to filth for it. I don’t want to go through 5/6 games of it first becoming “within my range”
If I don’t alt, there is a strong push from other players to just act exactly how I would act as previous town Solic and I typically default towards that, because it’s a path of least resistance. There is another layer in here of the amount of effort that is expected of me that I most definitely don’t want to meet all the time. I’m thankful for the alt system helping me push past these expectations. In addition it also prevents some SPKs, so that certain players can play past day 1 for once.
I think having alts on this site also has a site wide benefit on expanding reading beyond just metareading which some players do. I acknowledge that you have valid concerns, but for me personally, I’d wish the system stay in place.
I also agree with you that public discussion of who is possibly alting is not good for the system. I don’t see what that solves at all and it would break away from the actual game discussion in my opinion.