Let me just make it clear Youngen, there are no current regulations in the UK regarding smoking in the open air only at Latics.
As a consequence, and yes it might partly be the fault of people with no or little discipline, the smokers who cannot last those 2 hours, go to have a smoke in covered areas within the ground, usually to the inconvenience of other paying spectators.
I, despite my username, do not! It is no hardship really to go without the cigs for the duration of the match!
BUT What I do get annoyed at, is people telling me not to smoke, especially out in the fresh air! It is my body and my health and if everybody gave up smoking or was forced to do so, then your tax bill would rise quite considerably!