You should assume all ads are complete scams.

Some of them are funded by scamming others, crypto, VC, etc. Even the first link in the article [0] has a VC backed startup advertising (they paid $11K!) that nobody asked for.

There is no such thing as an ethical ad whatsoever.

[0] https://daringfireball.net/2024/07/apple_taboola_sitting_in_...