Did yahoo answers get hacked? What's with all the abdnsj type answers getting spammed on every question?

There have been many other questions about this already. Return of the spam bots (last attack was last spring). This attack became really noticeable on 12/28. Those posts are from spam bots. They are not being posted by people. They are automated. Report them. Mostly report the gibberish answers of misc letters. The accounts are attempting to gain points in order to post more Chinese language spam questions, even though we don't see those questions in the categories because the spam filter is catching them.

seenns like it, nnaybe you can try reporting thenn and see what happens

On 12/28 Oath /Verizon had another security breach resulting in Chinese spammers invading this site . When translating the Chinese content in the new accounts it's about prostitution.

Report it.

People are just putting random answers on as many questions as they can (using bots likely) to try to up their level on Yahoo Answers and get more points. Just report the answers whenever you see them and hopefully Yahoo will do something about it, as they are kinda annoying.