I don't see in what sense gif use is annoying, but we just made a button to get them easier, anyone was always free to go grab them online and post them here.
Indeed some browsers extension are available to block them, you can also talk to people if you think they use it too much, or simple ignore them.
Here some info on those extensions :
https://www.thewindowsclub.com/turn-off-gif-disable-animated-images-browsers
I think they spice up the forum and allow users to convey something a bit more than just a text, but of course they are not a replacement for a real exchange.