How do you post webms that are more than 3MiB
You can't. If you're trying to post on /r/, I take a screenshot of the WEBM and quote the post in the OP
>>16898361
I downloaded a video off /gif/ tried posting on a different thread but was more than 3MiB
>>16898400
Don't boards like /gif/ and /wsg/ have larger file size limits? Best you can do is link to the post