If I was trying to farm up votes I'd be posting about how Vayne needs a nerf, not wasting my time on a post no significant portion of the boards was going to read. I'm here because I'm trying to help.
I linked you to a post by Riot Afic outlining what you should put in a bug report, and it's pinned at the top of the Report a Bug section. That's Riot politely asking you to include as much information as you can. "It's broke, fix it" doesn't help anyone at Riot fix your problem, since they wouldn't have shipped it unless they thought it worked.
Ultimately you're hoping someone else has the exact same problem as you but documented it better, because if Riot can't reproduce the bug you're having eventually they will discontinue the old client all together leaving you high and dry.
Saying what OS (and version) you use doesn't cost you anything, but it could significantly help Riot's QA team find the bug, which helps them fix the bug. I really have no idea why you're being so defensive about it.