Tier 3 traffic might not always be the first choice, but it's still worth testing if you have the budget. These countries usually offer cheap clicks, which means you can gather data without spending too much. For adult push campaigns, it can be useful for testing creatives, angles, or landing pages before scaling to higher-cost countries. Some Tier 3 regions do convert if the offer matches their interest and the pricing suits their economy. It also depends on how good the targeting is and whether your landing page is simple and fast. You may not get huge payouts, but you might still get volume, which can balance things out. It's not a waste if you're learning and adjusting as you go. Others might have seen better or worse results depending on the offer and source. Anyone who's tried it with different ad networks can share how it went for them.