Just thought it would be quite nice to have something on my own site. I could also use it as a playground, as susan has done:
Yes, I like Susan’s playground a lot. And if there are specific, individual solutions you would like to showcase for your users it makes a lot of sense to create a second instance of MODx for that purpose.
I guess for doing this, you should create a 2nd admin-account which can view anything but edit nothing. Not a big issue, and I’m sure Susan will help you with the details if necessary.