I think we should sent a warn before banned member of range
Yeap, banners should spend their time to read basic, important rules of BTT forum before complaining about their bans' reasons.
Unofficial list of (official) Bitcointalk.org rules, guidelines, FAQShitposters have definitely gotten PMs for their deleted threads.
For users who abused the forum, merit system, plagiarism, etc., I don't see need to send them warning messages, honestly.
Abusers should be banned immediately after get found with as strict punishments as possible.