How many hours you've put in Dota now?

So yeah I wonder often, how many hours have people put in Dota, and what have they have learned over the time? I have 7671 hours now, and I've learned a lot from the Dota community, yeah laugh now, but I've learned to communicate better with people at school, also went from English D to English A now. I know my grammar still is shit, but I'm working on that. So what have you learned and how many hours you've spent? :)