I was playing a 6v6 lobby, and was roamer. Our demo left so i went demo, as i thought that me going demo was more useful to my team. Someone noticed that there was no roamer and repped me, i explained my case in chat and he acknowledged it, and even so said "lol lets rep him anyway". So i ended up reported and with a one day ban, which covers my off days from work.
I think this an issue that needs to be adressed, as many people just rep without checking the situation or just repping them for fun.