@midasjohn there are discussions around Bing, Google, and a bit even about YouTube. I'm not sure which company you are specifically referring to as trashads, but we have a ton of great ad networks here in the community.
if you could not get the PropellerAds promo codes to work over the past few days it's because we had reached the limit for the amount of times it could be used. This limit has been increased though so it should work fine now
@Luke Suggestion or what I would like to see on afflift -> An interview/ama with someone that starts from small budget and now earning 5-6 figures a month. Then as the admin of the part you need proof of verification via video or screen sharing with you. we know screenshot is easily tampered. POC can be seen by you. This is implemented on subreddit/ama to add some legitimacy for the OP.
@buithien create a follow along and get help. PropellerAds can be a very good source. I've spent and made a lot of money with them. Most important thing I've found is learning how to optimize the zones. You have to give your campaign a chance to find the winners. Even I am guilty of pausing too early.
the optimizer I've been working on actually uses the ROI you want to determine how much to use as a test, but the idea is that you should get a conversion within 1x the payout because otherwise you won't be able to get it profitable.