The first time in saw an animated gif user icon on the fediverse, i thought : 'huh, that's neat, that you can do that'.
The next time, it was : 'huh, people are going to make them flashy and annoying, aren't they. Why do people have to ruin everything.'
You do you, but if you enjoy it, you should be aware that notneveruone does and you are actively detracting from other peoples enjoyment, which is by definition, a selfish act, not what the fediverse is about, since you being up a comparison to corporate media.