I understand why people whine about low MMR games. They are horrible. I created a new account and wanted to level it up a bit to play with some low MMR friends and the games suck. Every time I don't go mid we lose because people are getting dogged on on every lane. When I do go mid, I end up with ridiculous scores like 30-2 and 900 GPM. And even worse is that people leave and flame like hell, calling other people bad when they're horrible themselves. It's not the bad plays that makes me annoyed on low MMR games, it's people flaming each other every time someone fails or plays bad when they're bad themselves and people leaving games.
Just checked my stats again, 21 games. 12 wins, 9 losses. All wins are when I go mid, all losses are when I go jungle or like Tinker ancients/easy lane. But I also haven't played any hard carry on easy lane yet. I really wonder how Dota 2 MMR system works. Though I've noticed that the queue times on this account are very long and search range is almost always maxed.