I think he means advice to the OP, and your credentials is your experience with students. Nothing wrong with a nice personal story like you posted though, imo.
Someone asked for help and they just talked about themselves. It's fine to do and lead into something like what he learned from that experience and how that might be helpful to the OP but without that advice it is just them talking about themselves. It's just... weird...
Ok. I did miss the line where I specifically give advice to OP that they also consider becoming a mentor to a local FRC team as a way for them to begin to learn about robotics.
I thought that I left the dots close enough for people/OP to draw the line, but it seems I missed the mark; good feedback on my lack of clarity; thanks!
I think I wouldn't infer that because I personally wouldn't feel comfortable teaching a bunch of kids how to do something that I didn't know how to do myself. To me it seemed like you were almost suggesting they join a high school team but that didn't feel right either.