Turkish users like to manipulate votes and have some high self esteem to be a superior in doing anything. So if some thing is Turkish rooted and be or seems to be better than competitors they have pride. So to have more pride and fulfil their self esteem they try to manipulate every voting system.

In this case, the self esteem is their comment is better to bee seen then anyone else's so why not manipulate the system? It's some kind of hacking culture but in a bad motive.