Pro Tip: Rather than clicking the "Add Reply" button, simply right-click that button and select "Open link in New Window" (or whatever equivalent your browser offers). The Reply window opens up, and the original post will be behind it, available to reference easily.
Admittedly, the forum software running here is a fairly basic, no-frills system. If you're used to other forum systems widely in use, it can seem a bit limited at times. Of course, the content and the contributors are what makes it valuable, so I think most of us calibrate our expectations.
It also seems to reflect the homey, informal, small-town, mom-and-pop business model that I think aligns with the overall Rick Steves' approach (it doesn't have the feel of a big, faceless corporation) - I think they like it that way.
It also seems to be a largely a self-sustaining system, requiring very little IT maintenance or staff time (at least that's how it appears to me, and I have a lot of experience with forum systems). Note that there are zero ads there - unusual for most forum systems - but maintaining a forum does have costs. Although we, the users, get a lot of value here, the forum is not a source of revenue for the company. At least not directly. One could (and I would) make the argument that the forum is a major draw and brings a lot of current and potential customer eyeballs here, and contributes a lot to the overall Rick Steves "brand" - just like the PBS shows and the classes in Edmonds, which are also "free" to users/viewers/attendees.
May not be perfect, but all things considered, pretty darn good. Just my 4 cents.