Put something on the submission window that says "About to ask about moving to Vemornt? Go to /r/NewToVermont instead, thanks!"

Then, if they post here anyway, hit the report button. If the mods want they can rig a bot to remove any post that gets over X reports.

You can't "fix" reddit and make it stay fixed, reddit's a garden, not a house or document. The invasives will ALways try and return, the caterpillars will just keep coming in waves, the weed seeds will never quit.