I just don't see a benefit (for me) of playing on Steam. I guess if I just wanted to buy a game that's finished for a one-time price, that would make sense. But most games I play are still in development... so I just support on Patreon or SS.
We consider each other friends and chat on a regular basis. So it was just something I was happy to lend a hand with. As you might hear from other devs, getting everything right on your Steam application can be a tedious and nerve racking process (because if they decide to ban you, you're done). So I was basically looking over what he was submitting and helping him make sure everything looked good and accurate.