Half the time, I go through an area and all the monsters are dead. Why? Because a bot already killed them all.
The low spawn rate means that instead of me being able to compete with the bots in a particular zone, I literally have to just leave and change channel because as soon as more monsters spawn, the bots warp over and immediately kill them all or just KS the shit out of me. Plus, the bots don't care about the tedium of waiting for more spawns -- people do.
At least if the spawn rates were high, I could still get my quests done without having to channel hop every 5 minutes.
Not to mention low spawns make me hate running into other people. In RO, I would heal/buff/res other players that I ran into, out of goodwill, but in this game, quest mobs are so hard to find sometimes that if I see people dead or resting with no health, I just think "good" because that means I have all the spawns to myself for a little bit.
Long cooldowns on skills, long mob spawn timers. You could argue that this means more time to socialize, but in reality, who the hell is going to wait around in an area with no spawns instead of just switching channels? When I stopped to talk in RO, it was because I needed time to regen -- not because there were no goddamn spawns left.
skills aren't a big deal, if you are troubling with skill cooldowns you are either low level or a class that is meant to be mobbing or auto attacking. I have more skills than I have mana for... but yes some things are obnoxious, like the quest items that you have to use like 20 times arbitrarily having a 60 second cooldown? Today I was trying to get 5 items that randomly come from a monster you mark with this quest item, it took forever and I got so mad because if you get hit by anything you immediately stop using the item and it goes on cooldown...
Or they're a cleric. They really don't get many offensive abilities till like circle 5 and the auto's blow unless you have sac + blessing + additional ele damage. I have exactly 5 offensive skills at level 130- Heal and Cure (useless as I am not Int), Carve and Smite (ok since I am melee built), and Turn Undead (70 second delay on 2 hits, scales with Matk and SPR).
Assuming I had gone INT I don't believe I'd have much difference in usable abilities. Really anly if I had picked up Monk for C5 instead of going Pally 2 would I have enough skills to not have 10-20 seconds of down times after every rotation.
Though I entirely agree with the quest item cooldown, it really should be changed to something like 2 or 3 seconds across the board for quest item usage. I can't really think of any quests where that short of a CD would break the quest.