knock backs are a situational skill A.E you pulled agro and need to get a hard hitting monster off you, in which case after the knock back you root them. Allowing the group to deal with said mob n then finish him off, or A.E to cancel an aoe. Knock back isn't a skill meant to be spammed just because its there and ready. Just like bards and goon's don't waste their elusive/exasive jump skills just because its up. (bard more so since it does do dmg). So those players didn't abuse the system to the sounds of it, It sounds like you just did a fine job of being annoying. and sorry when a group of people asks you to stop doing something, and you keep doing it, that's harassment. Which is a kick option.