It seems very server-dependent for some reason. I rolled a squad on an aussie (oceanic) server, and got endless hostile tells, before i even hit 14. However on my main server (Spirestone) i leveled from 1-70 and farmed Lots of BG gear, and i can count on my hands how many hate messages i got. Most of the feedback was positive or inquisitive. Doesn't hurt that I'm usually at or near the top of the kill charts