As mentioned by others, Google does "manipulate" search results too, but it is a slightly less sensitive/emotionalized topic because Google's content (web pages

As mentioned by others, Google does "manipulate" search results too, but it is a slightly less sensitive/emotionalized topic because Google's content (web pages) is very different from Twitter's (personal utterances). The question is: what does "neutral" even mean in this context? The dichotomy between neutrality and manipulation is artificial, although I do see the underlying assumption that the output of any algorithm would be "neutral" whereas manual interference with its results would be "manipulation". In reality, however, the boundary is fluid. Would an algorithm that automatically excludes certain sites be neutral, while excluding the same sites manually is considered manipulation? Is "apply keyword search, then apply blacklist" an algorithm or manual manipulation? On the other side, is an algorithm that automatically penalizes SEO-optimized (spam) sites neutral, even though a search term occurs much more frequently on that given site?