Quite sad. I have asked at least three questions to this mechanic at the time he was still active because I thought answers could easily help to clear some common issues on specific scooters. Without blaming him - he never bothered to answer my questions while he was still active.
I saw this happened on other forums as well. Mechanics join forums with a big “hoo-haa” but after a couple of tricky questions simply disappear. I could be wrong but I always get the impression they do not have answers for questions about all different models on the market - therefore they eventually disappear.
Maybe very obvious - I don’t think they ever get detailed training on all models, therefore it is obvious that they will not know everything.