It looks like SelfWealth is sponsoring the AusFinance Reddit...

It looks like SelfWealth is sponsoring the AusFinance Reddit with a prize.

To mark our (AusFinance) passing 50,000 members, text post of the week will win 30 free trades, with thanks to our friends at SelfWealth, valued at $285.

So I guess it'll cost the company half of the retail price to provide the brokerage, and they'd want to get at least 2 member sign-ups (considering their Jun-19 Customer Acquisition Cost of $60), or at least a lot of exposure. It does seem like a good investment to me (I presume it's free, just the cost of providing the prize). Lots of exposure with relatively prolific traders/investors, and ones who like to discuss finance, so might tell others about SelfWealth. I do see SelfWealth regularly pop up in the conversation there, when people discuss about brokers.