The most useless skill in the game:

There's a couple ranger shots that have increased arrow speed, but not increased attack speed, which means that pretty much nobody ever uses them. Increased arrow speed makes interruption easier, so no, they aren't useless.

Maybe I'm missing something, but the pet skill Otyugh's Cry (SP?) seems pretty silly. Turns animals in the area against enemies (for 30 seconds or something), but can't turn a pet against it master. I tried this out thinking it might turn some of the neutral animals wandering the explorable areas against hostiles (which would still be pretty pointless, but funny), but had no effect on them. Exactly which animals is this supposed to effect and who are they going to turn on? It seems like it would be a way to call a target for all of your partys animals to attack, so it might be useful then to focus all your rangers pets on a single target.

does mind freeze cause exhaustion to the victim ? No only yourself

I would like to see a list going, and hopfully something be done with them...

Mind Freeze ELITE (Hex Spell) Target foe suffers 10..34 cold damage. If you have more Energy than target foe, that foe suffers an additional 10..34 cold damage and moves 50% slower for 2..5 seconds. This spell causes Exhaustion.

I really really don't see a point of this... Unless someone want to tell me it ignore armor... same slow down as other ice spells, situational damage, low damage at max, 20 recharge and 10 cost, not AoE, Elite, and it cause exhausion... Someone tell me how the hell to use this thing??
To be honest it looks like an escape spell. Cast an run like heck and try to get a heal LOL, but I am a newb so have no idea really.

Maybe I'm missing something, but the pet skill Otyugh's Cry (SP?) seems pretty silly. Turns animals in the area against enemies (for 30 seconds or something), but can't turn a pet against it master. I tried this out thinking it might turn some of the neutral animals wandering the explorable areas against hostiles (which would still be pretty pointless, but funny), but had no effect on them. Exactly which animals is this supposed to effect and who are they going to turn on? I played with this last night for fun. Got 4 wolves helping me out in one of the Ice caves areas, and several Lynxes came to help out against the Tengu folks near Lion's Arch, but I agree that it isn't particularly great - I don't know that it turned the tide or really made much of an impact. It may also be adding that armour to all allied animals, in which case a ranger group with a few animals in it may want one ranger carrying this to cut the damage dealt to pets by 29% or so. It was fun to hear the wolves howling and see them run into the fight, but I think without spamming Order of Pain or something it won't make a huge difference, though they are decent meat shields. Maybe even Mark of pain, as they hit frequently for less damage than you do.

Increased arrow speed makes interruption easier, so no, they aren't useless. Exept that those skills do not interrupt.

Distraction shot is an interrupt skill that by default has increased attack speed, ineased damage and a 20 second cooldown on interrupted spells. It's far superior to any other quick shot skill, which have neither.