I have joined this site for a few reasons -
Lots has changed since I retired from IT Professional Technical Specialist role (IT Network Infrastructure Design) 8 years ago and I like to keep current with new operating systems, computer networking and other PC issues. If I have PC problems myself I would use this forum for help. I also don't mind helping by adding my comments when I think they could help.
I do teach seniors at our local community centre how to use PCs but teaching and fixing problems is two different things. I have a good knowledge of PC hardware and can generally fix most hardware problems as I have some very good diagnostic tools. I spend a bit of time helping people out this way.