I'm not the only one.
MG had noted that, after a week, Twitter seemed to realize that it was a problem that the replies still weren’t working, and was pointing people to Summize for a workaround. I said “I hate having to rely on the web version of Twitter, first of all, then having the reply tab bork, and THEN having to go to summize, and hit reply there and pray that twitter works. It’s why I only check Twitter once or twice a day now.