Note that I specifically wrote >1m visits per day.

Note also that the mention of one site is too literal and meaningless interpretation of my question, which is more rhetorical, and should be read like: "There are TONS of high volume PHP sites and very very very few high volume Lisp sites".

That said: the "no true Scotsman" logical fallacy is only a fallacy half of the time, like most of those so-called logical fallacies.

They assume a perfectly logical world, where you have infinite information at your disposal and infinite time to check it. E.g I'd rather listen to my doctor on my medical condition over a random guy on the subway, even if that's "appeal to authority".

Similar cracks in the "no true Scotsman" fallacy. There ARE cases where a category/taxonomy is used badly, and no true member of said taxonomy would so something. That is, membership in a taxonomy is not always 100% solid, and you can have true and less true (fuzzy) membership.

E.g

- No KKK member would attend a NWA concert. - But I just saw a KKK member rocking it at a NWA concert. - Well, no _TRUE KKK member_ would ever attend one.

It's obvious that the first guy is correct: no TRUE KKK would ever attend a NWA concert.

Now, a random KKK member could possibly attend one (say, out of curiosity). The "no TRUE" argument in this case, says not so much the impossibility of an event happening, but that it is against the very concept of the taxonomy under discussion for it to happen.

Hackers shouldn't touch the "logical fallacy" stuff with a ten foot pole. They presuppose that conversations and argumentation can just go "by numbers", without examining each individual case.