In terms of merit, that's a very tough call, which is why it is understandable for certain users to take a stand on principal rather than an amount. I guess this puts me in a similar camp to Loyce, in that, it depends on the circumstance and action(s). I suppose, for me, the threshold for abuse is something along to the lines of "Has there been significant damage done, progress made or advantage acquired through the proclaimed abuse?" Obviously "significant" can be debated and I haven't figured out a solid way to determine "significant damage". We can consider things like progress towards next rank or monetary gain.