Quote Originally Posted by OliviaLugria View Post
Lol, ya, why try and win when you can ensure another team loses? XD
Multiple reasons.

1. You claim a premade win-rate for yourself of 70%+ which I believe, although on Onsal I'd expect it to be 80% minimum. I've heard 80% from others, and as high as 90% for those real charmers who type that in chat to tell dissenters to fall in line or piss off. Let's take 80% as typical.

You or someone similar is running a premade session. I load in and find you are not on my team. I now have a 1 in 10 chance of winning the match (since the remaining 20% not sucked up by you is a priori split 50/50).

This is unlikely to be an interesting match since you're in it, and a 1-in-10 win probability is unattractively low. What else could I do to enjoy the next 15 minutes? Denying you a victory sounds reasonable. A natural side effect is that it increases the win probability of each of the two non-premade teams. Thus it increases my win chances, despite the fact the strategic imperative is to prevent the premade winning. As an advocate of "win at any cost" I would think this would appeal to you.

2. An attempt to evolve the meta. When premades are on the field, they dominate the current meta, both strategically and tactically in the stacks they use. Siding with the other non-premade team to defeat the premade is really the only counterplay, and by actively pursuing it, it's likely other solo players will follow suit. Again, this increases my win-rate long-term.

3. Spite.