If frustrated it feels like my libido could quite happily handle 3 times a day. But if I get that for a while, my libido goes down to once per day, or even two days in three. So I can imagine someone with a relatively low drive thinking, "It feels like I'd like daily sex" but it turns out they only have a twice-per-week drive when they are satisfied.
So, I think even for anecdotal evidence you'd have to discount people who went on the pill when they began to have sex. Also people who began when they got married but were before having sinful sex.
Our anecdote is that DW was a virgin and often felt frustrated and aroused before marriage. Honeymoon was 4 or 5 times a day, fine, fell pregnant on honeymoon. Through pregnancy she continued to be medium libido. Went on pill after childbirth and has since felt extremely sporadic desire. It's not tiredness and stress, because I'm the main childcare provider etc. Since the pill she felt completely different. She was on the pill for about a year, but the effect has been permanent. Although having said that, there are some signs of improvement. She can feel desire about once every week or two at the moment, for which we're very grateful and hope the increase will continue.
"Deliver me from worldly dispositions, for I am born from above and destined for glory" - Valley of Vision
"They think it strange that you do not plunge with them into the same flood of dissipation" - Peter