why did all my yahooanswers progress get deleted?

Someone may have Reported them all and they may have been Deleted Due to a Violation of the Yahoo Answers Community Guidelines

If you Believe you did not do anything wrong you can Try sending in Appeals for those and see what the YA Staff Says

To Appeal go here

https://io.help.yahoo.com/contact/index?page=conta...

Select Contact a Yahoo Specialist then Appeals then Follow the Instructions from there

Probably reported. Dude yer username is a vio so anyone can report anything u post and just say it's cuz of urusername. Use ur head.

Your activity shows you've answered 44 questions and posted 2 questions. If you feel there should be more than that, then assume the missing posts were reported as violations and removed. 

this happened to me, I lost all my answers. I am now -3,700 answers in the hole. luckily I did not lose my points

You still have 42 answers remaining.  So that means you must have had some questions reported.  Usually, people report questions the believe violate they community guidelines. 

An example would be a chat violation like "How are you?"