These are far to presumptive to be general truths. You mean to tell me that the percentage of (even first-time) visitors to Hacker News that know what PDFs and FAQs are is less than 99%?
Also where is your data coming from in the first place? Are your claims based on any non-anecdotal evidence?
Also where is your data coming from in the first place? Are your claims based on any non-anecdotal evidence?