@Turseturle do exactly what WaterPool said, the more people who complain and produce evidence- please do NOT be like other people in the last few weeks who post reports on people with little or no proof and expect something to happen.
Make sure you familiarise yourself with the ingame screenshot button (which is F2 or Fn+F2 on some systems) and hit the little ‘link’ which comes up, that way you can have a link to said images and then later on upload them to the website- though I would recommend uploading them to Imgur (but if you don’t have an account, make one) that way you can post all the screenshots together in a slide show format on the forums and people can easily see your proof (if you need help, ask a forum moderator- like me, to put the Imgur link in for your evidence).
Apart from that- make sure you get that evidence in and record (like write down time and date) EVERY time something like this occurs like you say it does- also don’t tell the guy your reporting him or screening him- self explanatory. Because if it is a ‘one time thing’, then its not a ban-able thing. They also need to be breaking a rule also.
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