I would look at the number of individual posters for your guess at the numbers.
There are 25 alone, who "liked" the topic. I bet the majority have the alert on.
In addition, I'd bet out of the individual posters, a great number did so to compliment you, and as a quick way to turn the alerts on.
The number of "browsers" that are out there, and regular????
Lots of folk don't bother with the likes.
I read here on OGRF for near two years before joining.
I'm sure the number anonymous people interested, far exceeds the aperrent
I've noticed a trend lately on various Craigslist cities, FB, and other sites as well, for folks giving hobby classes, and/or individual tutoring. One here in Michigan is specifically for layout scenery! An occasional 1/2 day-3day (monthly, quarterly?) workshop group, seems like an easy way to pull in a few bucks, have fun, meet people, and dabble in your old work, your subject, on your time, your way, at your leisure.
I attended lots of classes like that starting as a kid. Really enjoyed them. One guy, had a balsa glider class, and only seemed to know how to say "harder, "softer", "thinner", "no", "watch" and "see?". He just sat there watching us, while building his, from the giant blue print. We watched him, and copied him. I fell asleep a couple times it was so quiet, but I almost set a record with mine too
. Stepdad disapprovingly crushed it a few years later.
Real nice!
. Man that thing sailed
. 
...When does class start?
