Well the load is going down since blocking TOR. here is the banwith over the last couple of days:
1.02 GB
1.06 GB
1.29 GB
932.5 MB
645.7 MB
675.7 MB
725.4 MB
461.0 MB
Still 0 visitors in those days, so it is only bot, bad bot, hack and tor traffic.
It has nothing to do with Tor but I was more curious about a front page which returns 300k. If you reduced that as I pointed out above, it would go down significantly more, then you would not need to block Tor any more and you could withstand a hammering to the front page without burning your 5GB.
It’s a win-win solution.