The context is that he was posting on a news article about a fake police officer with SS tattoos carrying weapons to intimidate BLM protestors in Las Vegas.
https://archive.ph/EDNKt (this cnn article says his reddit username is p-hustle)
I used samac.io to search his deleted comments.
A few more comments:
Lol yep this shit pops up every few years. Aging like a fine toilet wine.
https://www.theguardian.com/world/2012/feb/09/us-military-marines-nazi-ss-flag-photo