When I make gifs and the video is available online, I usually include the link. Believe me, I know the frustration of seeing something and there’s no source link. So I do try when possible.
When I don’t include a link, and I’m sorry when I don’t, it’s because the video isn’t available online. It’s saved on my hard drive (see pic above). Or it once was available but has since been taken down or I can’t find the link anymore.
(I mean, some of the videos I saved almost four years ago. Some I extracted myself from DVDs.)
In such cases, I do try to put as much detail about the video as I can so that others may have better success in finding it than I did — exact date, what was he promoting, what show it was from, etc.
Ever so rarely, I make an effort to upload the relevant video — ex. this post. But I don’t always do that ‘cause that’s honestly too much work for a gif post and I’m lazy and/or should really be doing other things.