We're just trying to create a safe/friendly atmosphere for alternative people to hang out in! I used to work at Silks and I know how the chav element ultimately drove the alternative crowd away!
In all honesty, we're not that strict on dress-code, but we've gotta draw the line at some point.
And S_id... "it was shit" is not really very constructive! If you think we can improve things at the club, how about some hints as to what you think is wrong with the place, and maybe even some suggestions on how we can improve it. That would be much more useful, not to mention supportive of your local alternative scene!
As far as dress codes go, enforcing an alternative one is difficult to do and will choke your business. Lines are really blurred now and the only people you can peg by their clothes tend to be the kids, who are mostly too young to come in anyway, and the die-hards. As mentioned above someone can wear jeans and tshirt and they can be into emo, punk, pop, rock, indie - you couldnt tell just by the clothes.
The Crown is just as bad with its no baseball cap rule. yes the idea is to stop chavs coming in, but other people wear baseball caps too. Youd be better off just having a ROAR policy and stopping anyone coming in that looks like trouble, and just managing those that do come in's expectations (ie when we went to wendyhouse in tuxedos, the door staff were like "you do realise this is a goth club?".