Some 15 comments or so were deleted by user @Philipp on this question. Notably, the first comment (which was by another user, whose handle I do not recall) asked something along the lines of "Your question suggests that some of these activities are free, but they are, in fact, not. How are you suggesting that these things come about without financing of any sort?" I believe that this falls under the "Leave constructive criticism that guides the author in improving the post" criterion in the comment policy in that my question might seem to suggest that, e.g. a website might be built and maintained without any sort of funding whatsoever. I, at least, see that the language of my question might be improved based on this comment to be along the lines of "greatly reduced financing" rather than "no financing".
Some later comments took on a secondary discussion, and I personally flagged one for being impolite. However, all of the comments were deleted carte blanche, and I am wondering why they were all deleted, as opposed to only the ones that blatantly ran afoul of the comment policy?