Well, long walk for a short drink of water... Moreover, the point around the anecdotal Cloudflare Developer's self experiment seems to be "Don't trust in hearsay" rather than "don't self experiment", as the major gripes with the experiment are all related to external lack of trust in the experimenter's applied scientific methods. I get the point of not overestimating your own ability to think critically in this regard, but I wouldn't discard self experimentation per se, as it could always lead to further study.