Fun Idea... some of the explanations are definitely interesting.
I created my Avatar with the LEAST serious camera I have at my disposal so that I could remember to laugh at myself. I also designed it to have some visual impact in a small size, as avatars are such tiny little images many do not come across very well......(there I go getting serious again....).
My mispelled moniker, Infared, (the proper spelling was already taken) I chose because the first images that I took that got me some notice were back in the 80's and they were shot on infrared film and then hand-colored...pre-computer, etc. (I shot on Nikon's then....so is that allowed here?

At least I am a RELUCTANT convert...not a traitor. LOL!).