Ok, lets see if this can be made Barney Style.

Gravedigging: Posting of spam into an old thread that has died.

Spamming: Posting offtopic, incoherently or other wise ignorant shit.

One exists without the other while the other requires the other to exist.

Spamming is against the rules, so it is technically spam that causes gravedigging, not the post itself. Gravedigging requires spam, or for it to not be constructive to the conversation at all.

At any rate, bans come without warnings ouside of infractions/warnings. A member can actually be instantly banned for any reason without notice, or with complete merit to the ban.

If you want banning to get changed, you went about it the right way, but lets face it, if its not broken dont try to fix it.