What do you gain by feeding and afking the game at level 5?

So I waited approx 45 minutes for a queue because 10-16 dodges and 3 remakes. I went ranked.

And then I got support.

K riot, thanks for autofill, it really helped me, i shoved it up your butt and dodged.

5 minutes later I get into a queue and successfully a game we don't have to remake.

So i was nasus jungle as that is what i main in the jungle, Wu decides to feed yasuo top lane and he goes 1/4 and afks at level 5.

Lulu was 2/7 and brand was 7/2

So i stacked till like 13 minutes, killed brand twice, killed bot lane, shut down yasuo, got baron at 20 minutes in game, got every thing we needed to win, was 17/4, kept winning teamfights, legit enemy were cheering me on despite they were almost going to lose a 5v4 but yeah in the end we lost as we were baroning they stole it.

So they're at my inhib, lulu spawns, afks.

end.

"She has a penis" - leetoponly2k16

still wondering what did wu and lulu gain by doing that? laughs?