Ah, right, I should probably explain them:
H is the 8th letter of the alphabet, so “88″ signals “heil hitler.” It’s not actually used as a proper abbreviation like people use FYI or ASAP, but it signals to other neonazis that they’re “in on the joke” (the joke is xenophobia). Think of it like how terfs sometimes choose usernames like “radical-womb-lesbian”
“Jesus was killed by religious people,” and it’s more obvious sibling, “Jews put Jesus on the cross,” stirs up antisemitic thoughts - Jews are bad because Jews killed Jesus. This is most common in evangelical Christians. It’s inaccurate and wouldn’t be good logic besides, but the important thing is to signal to your fellow Christian antisemites that you think “those Jewish fellows are Evil and Jealous of our Perfect Ideology.”
Israel offers citizenship to Jews. This is intended to be so that, if a country decides to restrict Jewish rights or revoke our citizenship, we have somewhere to go and be citizens. Antisemites see Jews have dual citizenship and think “ah, now I can claim that they’re acting in the interests of a foreign power!” This leads into “Jews with political power are traitorous Israeli agents who don’t have Real [nationality] Interests in mind!!”
(((These things))) signify that whatever’s in the parentheses is Jewish, or Jewish-controlled, and also that being Jewish or Jewish-controlled is bad. For example, if you see someone say “the (((RNC))) fucked up again,” you can tell that they believe that Jews are puppetting the Republican Party around, and that they’re antisemitic.
I don’t know what they sound like to screen-readers, so I apologize if you just had to hear “left parentheses” more times than reasonable.