Sounds a lot like going back to the anonymous/pseudonymous usenet groups and forums that we had before 'social networking' became a buzzword.

Why use Twitter for such things, given its limitations? Why not use a blog, personal site, or forum where instead of just posting a link you can also write your thoughts about it, etc.? I get not wanting to bother with running a personal site or maintain a blog, but there are tons of hobby forums.

Personally, I never got the appeal of Twitter, and while I did enjoy early Facebook, since it jumped the shark I use it primarily as a long-term contact list for people that I don't talk to very often so that we'll still have a way to connect if one of us changes email addresses/phone numbers before the next time we talk.