It may be a bit hard I think a lot of those still maybe working couple with to little time to much afford to give to the forum crowd. But, still there maybe some retired or even some educators that might welcome the challenge to bend a few minds around the idea.
I've tried to get a friend of mine to check this site out but he likes his time off to much and when he gets a minute he's gone in search of a different adventure. Camping hiking fishing etc.
Well, its a forum I would defiantly consider but how many people are interested? Maybe create a group and see how many join. If enough join i would create a dedicated forum you PLCs..