I noticed a few times already there are animated gifs displayed for a day on every page and its annoying and wastes bandwidth.

For me a screenshot is a still image. If I see something jumping around the whole time it makes me dread reading the forum (and I dont particularly like the solution of all people having to install adblock and cluttering the manual block list every time this happens).

It would be much nicer if you show only a not-moving image on most pages and then have that animated gif shown only if someone clicks the image to view it more closely.

You can turn off animated gifs in your browser preferences. I.E. for Firefox type in "about:config" -> search for "animation" -> change the value for "image.animation_mode" from "normal" to "none"

Thats a global setting and I would sometimes want to click some tumbnail on a page and see an animation.

I was hoping the would be no more animated gifs after the 50MB one, even if they are 2MB. Thats because it gets shown everywhere and runs the whole time.

Re bandwidth, we are already severely limiting the size of animated gifs since the 50MB GIF debacle.

That's amazing! How did I miss that xD