I have found out recently on my Android phone using Google Chrome that it seems like site forces browser to download all video attachments, so it can create thumbnails. We are talking even about hundreds of MB on one page. Which is bad for both servers and mobile data users.
Example of such page:
https://gbatemp.net/threads/4ifir-vs-switch-oc-suite-real-benchmark.642354/
Example of such page:
https://gbatemp.net/threads/4ifir-vs-switch-oc-suite-real-benchmark.642354/