This is a very personalized question and no answer will be the same and many of them will probably contradict each other. For me it’s the lack of rewards that I find personally compelling. The Garo event is what got me in to pvp, I love that series and got every single item and achievement possible from it. After that I took the time to get the 200 feast win mount because I thought it was really cool. Then I wanted the frontline/shatter mounts and got those also. Now there’s nothing I personally want, if they release something I want I’ll go for it again.

The other reason I don’t find pvp fun (and this will be an unpopular opinion) is that I think healers are too strong. This is an issue I’ve had in many MMO’s and I’ve never felt that any have gotten the balance right. The closest this game had it (in my opinion) was when the sch and Drk debuffs stacked with each other. I know it didn’t have counterplay (which is why I say it wasn’t perfect) but it also made just straight up killing someone without the need for CC/stuns/silences viable which it absolutely should be.