No flop, full drop???

[ChuckyB]

They began spreading 1/2 NL at our casino a couple months ago. This situation happened last week. They rake 10% up to $5.

Three limpers, CO raises to $20, folds, BB re-raises to $100, all fold.

POT: $126...until dealer rakes $5 from it.

Is this standard? I feel like I should be complaining on a couple of fronts. One, there was no flop, so why drop? Two, the pot was really $46 with $80 uncalled returned to the BB.