I believe the ads would be more effective if they were more than just text with a link. Even knowing there might be an interesting promotion, I forget to check it 9 times out of 10, at least, because it just blends into the background.
I have more luck spotting btc businesses in these threads than I do the ads themselves
I agree that something needs to stand out if it is to remain text based. Bigger font, brighter colors... something.