There's some truth to it, but it's mostly that junior developers and senior developers with no discipline that give it a bad name.

The major problem is that it has one of the the highest capacities for writting incredibly dense code there is, paired with very powerful language transformation tooling (i.e. switch statements were added as a module, but can also be used for funny evil.)

You could… but it’s singly not setup for that. There are blog softwares out there that support activitypub-- I have no experience with it, but microblog.pub was nativity designed as an activitypub blog. There’s also a WordPress plugin that’s basically official (maintained by the company that owns WordPress.com) and has known good integration to at least mastodon, so I would assume it works well with lemmy, peertube, etc, since AFAICT, mastodon is the most opinionated of them when it comes to activitypub conformance.