Na he wont ban you unless you do >5 words posts. Also those all count as one since they are all added in one single post.

Parkour does require a certain amount of skills no matter with who else you play. But yeah competitive mods also depend on agains who you are playing so the dificulty is not always the same, sometimes you play agains someone who is really good and other times you are just messsing around with a few noobs