I don't object to using it for having some sort of image rather than nothing, but there has to be something of real value in the post. Video is a different matter, but then it may be possible to generate videos that present information in a now engaging way. I've not played with that yet. I have seen someone create animations of his hand drawn comics, but that is done as secondary content.
I'm sure there will be further debates about what content has value, as are happening elsewhere online. The best policy is to be honest about how it was created. I'm old school and may mostly stick to traditional methods, but I know attitudes are changing.
Cheers.
Actually we have something in our dev pipeline to tackle this point.