@hermeslispegistus @moonman @fl0wn No they are not, unless you count those of us who are server admins like fl0wn and I noticing them in our logs and comparing notes.

(Or developers for software that federates with Mastodon, hi!)

Some examples:

1. Salmon slaps from mastodon often include data that is not understood by GS or postActiv and causes them to fail.
2. Profiles contain HTML which is not permissible by the standard.  all data transmitted in ActivityVerbs should be pre-rendering.  Rendering is added by the server
3. Subscriptions from Mastodon to GNU social or postActiv often fail to renew because Mastodon does not seem to agree on expiry dates and will not renew them.  This is why people from Mastodon following externally have to refollow people often.  IIRC this happens internally with Mastodon too.
4. Sending notices to people that have a private account will create misleading errors that cause external servers to continue retrying notices to ir