I've had a lot of avatars
Which one should I use?!
Which old avatar of mine is the one you know me by?
I can't say that I can really recall any that you've had for so long that I can identify you by it.
The only avatar I can even recall in any detail at all of yours is the one you have right now, and only because it's right there.
If I'm reading topics and you've posted in them, you're one of the people I would definitely have to read and acknowledge the name.
Writing style can come into a bit, when identifying people, but mainly it's either the name or the avatar.
There are some people however, who regardless of what they have now, or have had for a long time, I still can't imagine them without a certain avatar.
Even though
Regulith currently has an MLP avatar, I still frequently put his old avatar image of the blue man (spy?) in the sombrero to his name, since he had that or variations of it for so long.