Who cares whether you post your system or not. Just look at all of the folks who don't and it for sure hasn't stopped many of them from commenting on everything under the audio 'sun'. If you want to post and and talk about your experience and some a-hole comments unconstructively its his problem. There will be some and there might well be a salemen or two trying to take advantage as well, but thats not your problem - it just goes with territory. Do what ever feels right to YOU! :-)
Who else wants to keep their system secret?
For 15 years I have assembled a system that I think is really good for music and video. My system has been affected by location,income,spouse and reviews from Sound and Vision and Home Theater. Reading almost all forums and not seeing any of my components mentioned has made me feel like I missed something. I am grateful for all I have learned from the forums but I am not sure I want to face them. Who else has a system they are happy with, but would rather not reveal?