On the 2 year anniversary of Blurt (7/7/22), transactions got stuck, and people couldn't post or vote.
I think it was something in the code that expired that day.
Anyway, it took them four days to get back up, and some people who rely on the platform for an income were upset.
The moral: post on multiple platforms, don't tie yourself to just one for political reasons. With the price of steem, hive and blurt fluctuating randomly, it's hard to pick a winner, so post on all three.