Glad it wasn't just me. It wasn't often I paid attention to usernames on the big subs, but it seemed like at some point they were absolutely flooded with "Adjective_Noun_1234" users, and I couldn't stop seeing it once I noticed. Those and the comment-reposting bots (which probably won't be called out by other bots anymore without a usable API) made me wonder how many actual humans I was interacting with.