Again, totally agree. But are you arguing that not changing/innovating, while refreshing, should be considered tech? I associate tech with innovation and trying something new. Zero to One.
It seems to me that Craigslist must have made some monumental misjudgment when they didn't expand internationally. I for one, for example, only know of them from hearsay as some kind of obscure US-only classified ads site.
They are international; it's just that outside of the US the quantity of posts is much lower as people use local alternatives.
Also a large portion of craigslist here was just the personals section - once that was shut down there is basically no good reason to use it anymore, as it simply doesn't have the network effect / critical mass of users to sustain itself. The remaining users all seem to be work-related scams of some kind (probably automated) and drug dealers (probably cops).