I would not know a mathematically accurate response to this question - but I did see a lot of references to embarrassing pro-Zionist (i.e. historically racist, colonialist, pro-Zionist) materials at the IA in the last week in various other forums, which are now no longer able to discuss the materials as they are unavailable.

If there is "pro-Palestinian" materials at the IA, I would imagine it being based on materials collected over the past year documenting the genocide, war crimes, and crimes against humanity being committed against them.

There is a definite effort to censor any and all reporting of Israeli crimes against humanity on the Internet - IA was probably a last refuged for those collecting this material.

Actually, there's plenty of obnoxious "pro-Palestinian" material out there as well, glorifying Operation al-Aqsa Flood, "martyrs" from other random attacks on civilians, not to mention the propaganda that there's no such thing as "Israeli civilian" anyway, and so forth. There's no need to go looking for it on the IA because they're quite proud of this stuff and are churning it out constantly. See also: https://news.ycombinator.com/item?id=41692193

BTW I'm a non-Zionist and strongly opposed to the occupation, etc. So please don't make any assumptions that I'm a hasbarist coming at you with their usual stuff. The depressingly tragic fact of this conflict is that there are legions of assholes and extremely naive, easily manipulated people on all sides.