Does using the image address work for all image hosting sites (other than imgur)? I did try it for lightshot and it didn't work

Does this apply to Twitter? Or is it just Facebook?

Hi, which specific image extensions are allowed on Tanki's forum? I have tried various different ways to try to embed screenshots into my posts, including pasting (Ctrl + V from print screen on my Windows computer) and embedding via HTML, to applications like LightShot or web media websites like Imgur. In any case, I always get an image extension error. Does it literally mean file format extensions, or am I using an incompatible method of posting screenshots? I would find a way around it if I hadn't read that screenshots via pasting are accepted, yet mine result in an error. This has been happening for about 4 months now. I would post an image of the error, but that's the point... xD

Where are the videos posted?