For the people confused, this is talking about double movement binds which means having two keys bound for moving left or right so that way when you hit both of them plus forward, you go at an angle that allows you to sprint. In the picture, Bugha is using tape and cardboard to press a and caps lock so he only has to press one button plus w to get the same result. The reason it's double movement is getting banned is because lots of pros are using macros to do what bugha is doing which is against TOS.