It is not so much the search engines that are at risk, but the people themselves. In a world where anyone with a $0.05 budget can just make something up, nobody will be able to trust anything anymore. It is not the search engines that will change the way we search, it will be the people, who will stop trusting anything they read. And that is a problem.
The problem is not with search engines. It's with people. Most people who get scammed will not be able to understand the text they see. They may think it's legit because it looks pretty, but they don't understand what the text means. The only way to find out the truth is by doing a little research and contacting the company to ask for a refund or to talk to their support. But, with enough of these scams, people will stop trusting anything they read.
It's harder than other types of text generation, because part of the game of referring to memes is to do it in as roundabout a way as you can, using the kind of hidden inferences a neural network would probably struggle with.
But it might still be feasible soon. shudders
1. Links from well-ranked pages. 2. Whether the user hits the back button or stays on the page.
Many of these should still work.
Searching for answers to an obscure problem with a software library now already leads to 5 Stack Overflow ripoff sites that at least contain the same text like the original. If these scammers can now generate their own texts (randomly including all possible keywords I might use to narrow my search), we will drown in useless information.
And this isn't restricted to programming, this was just an example of a field that is full of scam already. When it gets cheap enough, somebody will do this with any topic that people are interested in...
I wonder how Google and other search engines will tackle this problem.