4TH WALLING; Nnnnno? I really don't know if any characters would be familiar with Wakfu.
THREADJACKING; Sure! Just try not to get TOO crazy if it's my top-post, for the sake of my inbox.
BACKTAGGING; All day every day. You can necro really old threads, too.
TRIGGERS; Try not to post photorealistic images of larvae in our threads and you're golden. Wakfu is pretty French kid-friendly, so you can get raunchy but be gentle on heavy topics.

HUGGING; Sure! He loves hugs! Noogies, tackling and assorted other physical affection also okay.
FLIRTING; Are... are you sure? He probably won't recognize what it is unless your character is super blatant.
DATING; Astronomically unlikely. He's quite devoted to Eva!
INJURING; Yes. Please. Go for it. A Iop is not living unless he has two black eyes and a body cast.
KILLING; Sure, if you talk to me about it!