Before Google, search engines didn't do this. Paid results were indistinguishable from organic results.
Here's an example --> https://imgur.com/a/bSJTBeD
If you have a counter-example, please share!
Prominently? Bold text?
Here's how they repeatedly made ads indistinguishable from search results: https://atechnocratblog.wordpress.com/2016/07/26/color-fade-...
Or this: https://twitter.com/garybernhardt/status/1648496387640938496
To quote from the above, here's what they said in the beginning: "we expect that advertising funded search engines will be inherently biased towards the advertisers and away from the needs of the consumers"
I do agree however that the labeling has gotten less prominent over time. I don't however agree that it has become subtle enough to considered indistinguishable from search results.
This is what it looks like on mobile. A tiny "sponsored" text is the only thing that distinguishes ads from search results: https://imgur.com/a/WOk4NdR
It's deliberately designed this way compared to what it once was https://atechnocratblog.files.wordpress.com/2016/07/history-...
To deny this is quite bizarre
Now, when I search any even slightly remotely commercial search term on mobile, about the entire first page and a half of results are ads. Yes, they're identified with a "Sponsored" message, but as you can see from the "evolution" link the other commenter replied, this was obviously done to make the visual treatment between ads and organic results less clear.
The reason I'm thrilled about Google finally getting competition in their bread-and-butter is not because I want them to fail, but I want them to stop sucking so bad. For about the past 10 or so years Google has gotten so comfy with their monopoly position that the vast majority of their main search updates have been extremely hostile to both end users and their advertisers as Google continually demands more and more of "the Google tax" by pushing organic results down the page.
In the meantime I've switched to Bing, not because I think Microsoft is so much better, because I desperately want multiple search alternatives.
Edit: Great article from a couple years ago about how Google tried to make ads even more indistinguishable from organic results: https://www.theverge.com/tldr/2020/1/23/21078343/google-ad-d...
> ...
> In the meantime I've switched to Bing
Hilarious!
Here's Bing --> https://imgur.com/a/N3HCTtw
Here's Google --> https://imgur.com/a/bSJTBeD
Identical search terms.
Which ads look more like organic results?