Uses / day of stunning fist for monks who take the feat after their archetype trades it a way.

[Gluttony]

Let's say we have a Weapon Master Monk. His archetype trades away his free Stunning Fist, but he wants to do it anyway, so he takes the feat the old-fashioned way.

How many times per day does he get to use it? Does he get to follow the 'Special' note under Stunning Fist's description (uses/day equal to his monk level, plus 1 for every for levels in other classes), which says monks get extra, but was made before the existence of archetypes and clearly didn't account for the possibility of a monk trading it away and having to get the feat the long way?

...Or does he get the standard 1/day for every four levels he has obtained because he traded it away and had to go the long way?

[Bob Bob Bob]

Okay, so after reading it to try to come to a decision I have come to the conclusion that the devs are idiots. Here's why:

Stunning Fist wrote:

Special: A monk receives Stunning Fist as a bonus feat at 1st level, even if he does not meet the prerequisites. A monk may attempt a stunning attack a number of times per day equal to his monk level, plus one more time per day for every four levels he has in classes other than monk.

You can't trade it away. The feat gives you the feat. Even if you trade away the Stunning Fist (Ex) ability of the monk you still get stunning fist for free at monk level 1. You just don't get the ability to apply other effects to it.

As to your question, I don't see anything in the language that would change how it works for archetypes that trade it out unless an archetype is no longer considered a "monk". Which would screw up a lot more stuff (mostly feats that require Fighter), so that makes no sense.

[RumpinRufus]

I don't see why he wouldn't get it level/day, same as any monk. The feat says "A monk may attempt a stunning attack a number of times per day equal to his monk level", not "A monk who gains this bonus feat may attempt...".

[Chess Pwn]

he gets to follow the special note.