They may sure have fun, I just don't understand how.
Ill try to explain:
In native, point and shoot takes most of the fun away.
In cRPG, you dont have perfect accuracy, you have a big arrow drop, there is a guy there who may or may not know youre shooting at him:
If he doesnt know, and goes in a straight line, calculating the trajectory and the "chof" when you hear the arrow impact, thats, what gives you a bit of fun.
However, if he knows youre aiming and shooting at him, he will dodge, or he will be behind a shield. If he dodges, being able to calculate the trajectory so that they intersect at a point in space, and hearing that "chof", knowing you got him, thats the fun. If, in addition, its a headshot, and you see him die, thats the big fun.
If you play melee, when you miss a block, get spammed, or just get hit, you get frustrated, if you miss a clear arrow, the same.
If you hit the enemy by spamming: first situation
If you hit the enemy in an intense fight with blocks, holds, feints, etc, then its like the second one.
If you are cav, backstabbing is the first one, getting someone aware is the second one, and if you get outreached, its the frustration.
In all cases, getting shot while attempting anything else, is frustrating, but so is facing someone and getting backstabbed... So everything has a counterpart in their other parts, and thats why people have fun playing archer (same as with any other class)
again, not everything in the game are the holy shiny armored big sword/pole wielders, there is also a lot of room for other things