No, I didn't watch it before asking the question. It is helpful to know why something is helpful before i watch it, so I can focus on what the poster is intending to draw my attention to. This happens alot on the forum - people posting links or articles, etc. without any context or analysis, expecting everyone to assume or infer what the poster expects us to draw from the post. I am all for doing my own work, but as someone with less education and experience in this industry, the real value I draw from the forum is others' analysis and viewpoints.