I wish if there’s this function, that stops new users to send messages to other members for the specified period, so that if spammer is registered they can’t abuse other users sending messages.
Oh, as always if you think this could be done with some bp-custom hack, please let me (and us) know.
You could easily do this with a plugin. Use the ‘messages_message_before_save’ action and check the sender_id’s signup date. If it’s less than X amount of time, reject the message.