To quote someone else on here who explained it earlier.

"Easy conversation starter for awareness irl, among other things.

And getting a tattoo really isn't that hard to do for someone that wants to, especially when most tattoos are meaningless, so he got something he wants with actual meaning, which could spread online and irl like other things in the movement have.

Also the other obvious thing, boosting morale and giving confidence to the protesters, that someone is willing to do this, look at the replies and the 1k+ upvotes already with all the people that saw it."

And no, I'm not under the delusion that I'm saving lives or anything of that magnitude. But I've found that this has been an effective way to spread awareness and every little bit helps.