Yes, it is fun for some ppl to attack others while they are away on hk. There are also ppl who like to make love with those who are sedated and/or unconscious but not everyone shares that passion.
I see no fun or excitement in pking ppl who are afk or who are way weaker than me.
I'd understand this if there were like 10 pts in every spot, but as a ranger you must know you have to run a lot to find someone playing in Rohan, so pking those few who are left does not seem very clever. But ok, I don't mind if you do. If it happens to me I just log out and do something more interesting.
So, just enjoy while you can. What else to say?