If you own an independently hosted WordPress blog, you can turn it into a Fediverse blog that people can follow from Mastodon:
Also, this method means the blog will effectively be its own Fediverse server. You won't need to rely on anyone else's server.
As the blog's owner, you will be the one deciding how long your content stays published, and there will be no character limits either.
(Note that this won't work on wordpress.com accounts, you need an indie hoster.)
@feditips Yeah, about the #ActivityPub plug-in for #WordPress ...
Turn on Debug Logging and tail wp-content/debug.log
It's a Really good start, and I encourage folk to try it, but it's Not ready for a Production WordPress site.