It seems that because twitter recently tightened their rules and caused trouble when locking up a lot of crypto-related accounts, people were more interested in new social networking projects.
I'm using a social network similar to Blabber is Empowr in the past few months. Although they are pretty good, they still can not eliminate fake reputation, and spam.
How does blabber solve two problems fake reputation and spam?
Reputation and spam in the virtual world seems to me unrealistic to eliminate. This problem has been and will be until the strictest form of aml + kyc is introduced.