Which is why I know the moderators are making bold face lies about what they can and can't do here.
Did you stop to think that this message was added by theymos and that he made it so that every time you delete a post, a notification is obligatorily sent to the user? And if this is hardcoded (
function deletePost() { delete(); sendDeleteNotificationPM() }) there is no way a mod can "bypass" it? And maybe the fact that you can delete a post in your SMF forum without a warning is because this is not a pre-existent feature?
No match to this kind of message on SMF:
https://github.com/SimpleMachines/SMF2.1/search?q=A+reply+of+yours&unscoped_q=A+reply+of+yoursIt only takes minutes to set up an SMF forum on a website (and it's free!) - give it a go and see what you can and can't do Vs what you are told can and can't be done on an SMF based forum.
BitcoinTalk SMF code is heavily modified. It's not like theymos can't add his own features or edit pre-existent ones.