What is this icon mean?

Hi All,

Quick question and I guess brief background as to how I even come upon such review or icon.

So I get this rude message today from Stuckfish15 today in my inbox saying:

*********************************************************************************************

Stuckfish15 sent you a message

just stopping by to say I am blocking you for being a simp for a for profit company that is working to lock chess behind a paywall and profit off of bored kids. And enough with your preaching in your profile get a life

*********************************************************************************************

Now while I felt that was weird and wonder why such rudeness the first thing i do is query when have a played this guy and thus did the query in chess.com and I have never even played him?  So that within itself is weird as why then write me?

So I take visit to his account on chess.com and find he is new account too in last 15 days, which is weird too ... as to write me this way and again how he even see my profile and why? I mean supposedly he never played me right? according to my account and his new one.

That said I dont care about all that ... the only reason i write here is I am in technology and always like to learn and find little things interesting as who knows at times they are of value in learning something else and this chess.com software has many values and is just a great platform, just deigned so cool and many cool features such as is my question herein below:

So only way and reason i find this icon is by the above went to the guys account/profile and see this icon in the games played on his profile?

I checked mine and others and never seen icons like this before ... thus what does it represent?

Thanks -

If you mean the helmet with swords, that game was from an Arena event.

I just blocked Stuckfish 15. Should I send him a message?