Over time I've encountered many PNGs, GIFs or the occasional APNG that are poorly compressed, if at all. Not utilising transparency for redundant areas in animations, or people naively setting "Compression" to 0 when exporting PNGs.
This was the latest example I stumbled across just now post #5019102, I can shave 69% (Nice) off the filesize and get it down to 13 MB, just with a standard lossless PNG optimizer. This would be an ideal case for the post replacements beta, but this is an archival site so I imagine not having the same file as the source could be iffy, even if the pixels are identical.
I'd like to know if halving load times and bandwidth usage is a fair trade-off for replacing the source file, and if so, then I'd like access to the post replacement beta to assist with it. Hopefully this is the right place to ask...