Theory is shit. Jpgs and pngs load slowly as well. Have been back into old breads where jpegs were visible yet jpgs and pngs weren't. Run your own test kek. Theory is shit. Board's gonna board.
There may be a valid reason for not posting jpegs but have not actually seen it given. The reasons I have seen (too long to load, images don't stay in archives) are baloney. Meantime I dig on my own and rarely post. Works out well for me, kek.
Could be for some images, yes but wouldn't/couldn't that also be the case with .gif files?
Time for some smashmouth again! Hit'em in the milkers with the left hook, please…..,