excuse me let me answer.

1. The first platform I followed was hive.
2. I was in the blur for about 1 year or so.
3. I think it's hive, but it's a bit difficult to get coins, because there is a downvote system so that posts that are not good are easily reduced by estimates.
4. about 1 year ago, but forgot exactly when
5. I'm using blurt, I haven't logged in yet, maybe I'll try later