1.- I actually think that like most of us who are in BLURT now and before we had left Steem first and then Hive, the reasons are not just one but several and recurring.

Niches that are too personalized (Venezuelan communities are terrible in that sense), too many negative votes, users hunting for downvotes to increase their income, exaggerated rules, etc.

In my case, for example, in Hive there are two communities dedicated to cooking and recipes and it is impossible to get out of there. They always vote for the same users and excellent posts have almost no value.

BLURT is a calmer and more supportive community where you can participate without too many personalities.

Have a good week.