Yeah, he freaked out when a fan credited him on Floraverse's tvtropes page.
btw a little :late: but I thought I'd mention it since I've never seen anyone bring that up: PK revealed that Andre's personality and humor were inspired by the King Cuck himself during one of her flora podcasts with bloodfencer. it was one of the last ones with Marl as a guest, we probably still have those recordings archived (i know most of them work if you use the wayback machine)
so yeah, considering how Marl wrote the script for the Andre-heavy stories and how Andre stopped appearing once PK took over the writing (from Try, Try Again onwards), i automatically think of Andre as Marl's self insert of sort. what's interesting is how PK won't shove that particular character into any porn scenario.
make of that what you will