the guys just asking if he can post without copyright infringment. i don't think making money of it is his primary concern.
fanworks and copyrighted works have always been in the grey area when it comes to money and profit.
you can always count it as a derivative or parody and still be able to earn income from it because its a parody.
if you ask me however, as long as you have a story that you want to share, by all means tell it. you wont be banned from making pokemon comics and it would be a disfavor if you did.
posting it here will most likely be okay. but its always reccomended to ask admins just in case.