Autoban by tripcode?

Just curious, /prog/: Is it possible to instate autobans based on the way a secure tripcode appears? Just wondering, based on the flood of triptrolls some of the imageboards have to endure at the moment.

Just curious, /YHBT/: Is it possible to instate autobahns based on the way a road layout appears? Just wondering, based on the flood of traffic some of the highways have to endure at the moment.