It only works in direct messages, not posts for some reason

I've been looking for a site to read manga on the switch, but because of the switch's measly 2 gigs of ram, many sites have issues loading images.

Not sure if this is off topic, but ive noticed that videos sent through the dm feature on twitter are able to play , with minimal issue on the switch browser. Does anyone know why this is, and if it n be put to use?