Let's talk about what "unsportsmanlike" means
I've received a fourteen-day ban for use of the word "%%%got". I got angry at the enemy team. Now I know it's a naughty word, but rito tells me I was banned for unsportsmanlike conduct. My conduct was extremely sportsmanlike, so ultimately I was banned for using a naughty word--a word which I'd have stopped using and apologized for if anybody had spoken up rather than quietly reporting me at the end of the (very pleasant) game.
Everything I said (except for "gg" at the end) was in team chat, and apart from momentary outbursts, I was quick with a compliment to my teammates for their successes, while not criticizing their failures.
Here's my complete chat log (minus things said by everybody else):
Gov Sick: ffs
Gov Sick: %%%got ass enemy team
Gov Sick: oh they're all AD?
Gov Sick: good
Gov Sick: except corki's AD gives him massive magic damage
Gov Sick: still though, good reason to build armor
Gov Sick: waiting for TM
Gov Sick: sry for ks rak
Gov Sick: kk cool
Gov Sick: ali building full AP
Gov Sick: it's going to cost them in the end
Gov Sick: nice job
Gov Sick: nice
Gov Sick: waiting for another item :
Gov Sick: nice
Gov Sick: %%%got ass alistar
Gov Sick: %%%got fucking pieceo f shit asshole fucking alistar
Gov Sick: FUCK I FUCKIN GHATE YASUO
Gov Sick: their %%%got team comp is so fucking mobile
Gov Sick: gg
Gov Sick: Gg wp
I know the majority will be against me on this, but it's bullshit. I didn't use the word in a hurtful or homophibic way or say anything unkind to anyone. I groused quietly in team chat about the enemy Alistar disrupting up my Sion Qs.