Whenever I do an esoteric technical software search on Google, invariably, 90% of the time I will see sites with webscraped content appear on the first page of Google Search results. For the record, this can also happen on duckduckgo.com. I want to ask:

What is gitmemory.com (and friends)? Why do these websites exist? What kind of incentives are at play when they clutter up my search results or make me waste extra time by looking at text I just saw on GitHub.com?

Is it for ad money? I almost never see any ads on these kinds of sites. Is it because the UX is far better than the original site? Not... really, because many of these webscrapers combine different threads that hardly relate to each other and only vaguely have similarity.

Many other sites, with random sequences of letters or random words combined together for a domain name, are also just effortless giant webscrapes. Sometimes it's just a giant blob of quoted phrases/words from different websites mashed together into a complete blob with no sentences. I can't think of any examples off the top of my head because usually the names are very forgettable

What are they for?