Sometimes the input can be useful, if you're fishing for compliments, then HLP isn't really the place to do it as you yourself have no doubt learned, but, for example, on the Azaes thread, I got quite a lot of helpful input from people about what direction to take with details etc.
Whilst it's true that the basic concept of the model should be in place before you present it to the 'public', I actually find input from other modders very useful, Vasudan Admiral, for example has some excellent ideas, he was 13 when he joined Twisted Infinities, and now, he could model me under the table, so I always listen to advice, and discuss things with people who I respect.
I suspect that's why I was a bit hurt by GE's comment, since he's another Modder who's advice I consider to be of importance.