Oh no! Not concerns! If only there was an open source, decentralized platform that had an active community that could address said concerns if they become an issue.
Weird, it's like you only read the title. The article names several things. Data breaches. Unremovable content. And then some stuff that's sort of solved by defederation but still kind of an issue, like moderation.
This is the internet. Data breaches, and unremovable content have been here from the start, including with big tech companies. Also, how is moderation more of a problem here then on dumpster fires like Reddit and Twitter? I don't buy these criticisms of the Fediverse, sorry.
Tbh I would rather browse flickr or dpreview when that was a thing than to jump on instagram. Never been on it - but seeing the stuff an ex would post and others I always found it offputting. I am sure it had good pictures on it at one point, but that was so long ago I never had an opportunity to experience it. I assume it was good before facebook bought them.