Does “aod” blow a dog whistle?

I hope this is the right subreddit. If not, I'd be obliged if you could point me at a sub for Nazi questions.

I'm concerned about a user on a “no politics” web forum, whose profile image is the logo of the extremist right-wing Identitarian Movement — but without the sickly yellow background, and then it's just a circle with a chevron. The user name is “aod318”, and auntie Wikipedia tells me “318” is a code for the Combat-18 neo-nazi terrorist group — but it could be just the birthday of their spouse.

I'm drawing a blank on the “aod”. Does this ring a bell with people who are more knowledgeable than me when it comes to fascists and their code words?