Eh, I don't think people will look that closely at the time. Probably more like "How long has it been since they last posted" at best.

I don't post that often. When I get stuck on a problem because of poor documentation or poor explanations I just make a tut off that. Mostly focused on other things right now though. Making a video is a lot of work. Come up with a project, a script, rewriting your explanation, fill in your gaps in info, voice recording, video editing. It adds up.