Just seems like a bad jungler. Someone who doesn't understand their champions power at any given level and doesn't have confidence to gank until level 6.
A lot of new players or new junglers will have this problem. I sure as hell did when I started playing jungle a while ago. I usually give these types of players breaks and just see how they play and try to help them. Some take the help and other tell me to fuck off. Just depends on the person.
And the "ban bot" doesn't wait for any number of games that I know of. When a report comes in, it'll check all reports on that player, look at past games and try to find a correlation to see if the report has merit. If it does then they get punished, but it's not the most accurate system out there.