I don't know of such a thread, though there are lots of trip reports that are for travel on RTW fares (though often not identified as such, for example someone may report on LHR-JFK but not highlight that it was actually part of a RTW ticket).

But I'm intrigued by the premise of your thread -- of having troubles "on these fares" and/or having a different experience. The in-air experience is identical to a point-to-point F or J ticket, and I've never seen even a hint of a difference. Some airlines even provide limo service on RTW fares (e.g. CX in LHR) so the sameness even extends onto the ground. Is your question theoretical or have you completed RTW travel and experienced a difference in treatment or problems from using a RTW fare?