This place is probably too polite for them 
Is it common amongst Israelis to find such tings too polite?
I dunno about impolite per se, but all of the Israeli and/or Jewish folk I've met so far (admittedly not a large number, and therefore not a statistically adequate sample) have been bluntly honest. A trait I personally admire, but can be misconstrued as impolite.
I heard that stuff about us being brutally honest, but that's usually said about israelis, not Jews in general (not all Jews are Israeli and vice versa).
I guess there's some truth to it, but what I meant was more along the lines of "most israeli surfers would rather be in a forum where they can swear a lot"

Ok, now I'm giving us a bad rap... we're not ALL like that. I'm just a bad example. Some of us are quite nice. Or so I've heard
