A good technical disucssion can easily run to a few pages in an hour, with most of the posts in it typically from a small number of people who have good knowledge of whatever the subject of the post is, so for example it might be Stu@MSD if its on mapping.

Stopping that input would be the most stupid thing ever imho for this forum, so no I dont think its a good idea to stop the most useful members of the forum who contribute the most to technical discussions personally.

Shame there is no way of easily identifying people who are so sad they only really come on here to moan and whinge though, as thats the most tiresome and pointless thing to read in a big melting pot like GD IMHO, still at least its easy to just scroll past it when its boring, but certainly when it comes to good technical discussions I dont care WHO posts it, providing its good info.