Projectile pet mobs (skeletons, blazes, ghasts etc...) can't attack
Random concurrency issues
The /petinfo command does nothing.
At times pets can dissapear and /pet will not solve (Re-log appears to solve it)
Ender Dragons are super buggy.
Ghasts cannot be tamed.
Slimes cannot be tamed.
Skeletons are still not enabled even though they can be tamed because they still shoot you. ( Is this still a problem?)
Creepers swell up and remain swollen even after being tamed. (Re-log only duplicates issue.)
Upon hostile mobs to you (/pet) chance that it may attack you. Really bad for servers on hard mode (like mine)
Default item to tame cow is wheat, bad since the introduction of breeding. Can spam chat if you attempt breeding cows. (I know this is changeable * but it probably should default to another item.)
Animals/mobs love to get really close to you. A bit claustrophobic at times. (Increase minimum idle distance?)
Blazes continue to attack you until death, after which they appear to back off (Probably disable until Skeletons, Ghasts problem is fixed)
Reload causes pet to disappear and /pet returns a "You don't have a pet" (Re-log appears to solve it.)
Zombie appear always hostile. (Might have been from playing with config. More specifically: "AttackTame" )
Ability to use /pet while riding your pet. (Seems a bit redundant)
While riding an Enderman, he can teleport and bring you to some terrible place. (Not really a glitch but still kinda scary.)
While riding a mob you can suffocate (Happens in a lot of other plugins. Maybe ignore the suffocation events?)