I really couldn’t care less if I can follow a Lemmy community with my Mastodon account or comment on a PeerTube video with my Lemmy account.
Don’t get me wrong, it’s neat and a cool achievement of the ActivityPub protocol, but that’s like advertising that your awesome new solar-powered, self-driving, flying car also has power windows. I’m glad it’s there, but there are way better things to talk about, especially when trying to convince a newcomer to jump on board.
I hate the Mastodon/similar integration for posts. Hashtag filled garbage most of the time.
The Mastodon posts are nearly always higher quality and more on topic than posts from lemmy users.
At the very least, simply mentioning a community shouldn’t result in a post here. There is no shortage of “Just installed @[software]!” posts with absolutely nothing of value.