Sometimes people are pinning their intro post on their blog. This already helps me to get a first view on who they are and what their interests are. But I agree a 'intro button' would definitely be a good idea!
Messaging on Hive, I heard it plenty of times and experienced it as many times in cases I thought: now it would have been handy. Although, I guess it's not that easy to develop. I am not a tech-savvy person though.
Great article with awesome ideas!
Thanks for your feedback!