I am a paying customer and have every right to go where I wish, within the constrains of the game. Telling me to avoid an area if I don't want to be bothered by someone else's behavior is wrong. Furthermore, you just admitted that someone is bothering someone else. That is the very definition of "harassment", and is against the Terms of Service.
As stated several times in this thread, removing the buff simply allows it to be spammed again. It exacerbates the problem instead of solving it.
In summation, the enjoyment someone experiences at the expense of someone else's grief is incredibly selfish at best and harassment at worst.