Though I drive a lifted JK with 35's, I wave to any modified Jeep. Stock Jeep owners rarely know that they belong to a group, so rarely wave back. If they wave, I'm happy to wave back. Any lifted or modded ride, I wave first. To me it's not the model, although a bit of rivalry is funny, it's off-roading, beaching, etc. That we all share regardless. And for the record, I love my TJ too. If you happen to pass me, you bet I'll be giving you the salute!
Doc