SkarmBlissCounter,
Meditate/
Howl also allow CAP6 to beat Revenankh 1vs1 so I believe they should be allowed.
There is no competitive difference between Milk Drink/Attack Order/Recover/Slack Off/Roost but some are exclusive (Attack Order, Recover) and some are flavour moves (Roost) so I believe darkie has realised some people might vote against 50% recovery moves purely on a flavour basis which would fuck up the voting thread. There's no way to tell the reasoning behind peoples' voting. It is safer to keep Recover/Slack Off together and leave the others in Unallowed.
I am fervently
against Bulk Up as I believe CAP6 needs solid recovery in order to successfully decentralise - most people will be switching out of CAP6 on any pokemon that is seriously threatened by it. As a result, CAP6 is going to need to be able to switch in and out alot and only Recover/Slack Off/Equivalent give it the chance to do this. Therefore I
support Recover/Slack Off being Allowed.
Bulk Up on the other hand stops it from freely switching in and out since you wont want to lose 2 boosts let alone 4 if you get two Bulk Ups in. As such, adding Bulk Up to CAP6 would be counterproductive IMO.
Bulk Up also gives such a naturally bulky pokemon with mediocre Attack a chance to become a sweeper and that would go directly against the concept of keeping this pokemon as a potent check to top level threats. Yes it still checks them but it would fit another role much better with Bulk Up.
Lastly, I believe that Aqua Jet/Mach Punch/Thunderpunch Is pretty good coverage and with two STAB priority attacks, this pokemon will be pretty good at sweeping after a few Bulk Ups. Lets not give it that option.
Stockpile on the other hand only boosts defences so is less of an issue than Bulk Up. Stockpile and Recover would make CAP6 pretty sturdy pokemon but as long as it does not get attack boosts, it still cannot sweep. Since sweeping is the main thing we wish to avoid with CAP6, I believe
Stockpile should be Allowed/Controversial.
For the +2 stat ups, I can see an arguement for Amnesia and Agility, but i can not justify a water/ifighting getting either of the other three. While there are a few Water types to get Barrier and Iron Defense. They are all rather defensive based. There is only 1 fighting type pokemon that gets Iron defence (Lucario, and that's because it's a steel type). They do not seem justifiable. Move Barrier to Pending, Iron Defence to Controversial
I dont think moves should be put in a different category purely due to shaky flavour based reasoning. The movepool creators will decide on flavour so if the majority of people are happy with Amnesia, I believe Barrier and Iron Defence should stay in the same category. By the way, isn't CAP6 a defensive based Water type anyway?
I think this Pokemon shouldn't have any recovery moves besides Rest and Drain Punch. Aqua Ring though should be considered.
Aqua Ring should be allowed as it is a form of recovery less potent than Recover/Slack Off but still competitively viable on such a bulky pokemon. It could see use, especially if this gets Amnesia/Barrier/Stockpile etc.
Most importantly, there are a number of people who believe 50% recovery moves would make CAP6 too strong so Aqua Ring gives them weaker option to support.