With regard to videos, some of us view the forum from work where there may be a "quiet office" policy in force as music and noise from videos can be annoying to colleagues.
Therefore, videos should either be silent or not used.
The other problem with videos is that you can't Control-F search for bits at a later date - you end up fiddling with the slider to find the correct point and this wastes more time than it saves.
The idea of a forum is that anyone who has a clue can answer (with the exception of malware removal where special training is required to respond) and we all learn.
As for describing the problem, I'd say that one problem is that people often don't understand their own problems. Even IT people. I work in technical support, and if I had £1 for every time I had to deal with a call that was logged by way of a screenshot that consists of nothing more than an error message "Error 80078005 unspecified error" and the wording, "What does this mean?" I'd be able to give up work and be sunning myself in the Bahamas by now.
The immediate answer is, "I haven't got a clue. What were you doing at the time? Has it ever worked? What changes did you make just before it started happening? What is the surrounding context?" And so on.