Faffing about with the stadium files has really enhanced my game. I created my own park-football youth team, populating it with 15 year-olds at the start, and putting the team in a fantasy division of made-up teams from villages and islands with populations of 100 or so. With attendances in single figures it just didn't look right playing in multi-leveled stadia in urban environments. By following the tips in the linked thread I have not only got rid of the stands, but also changed the scenes outside to trees rather than housing estates or shipping containers.
Bear I mind what you change doesn't just affect your own stadium - it affects all those in the same categories, and you can't really know which ones they are. For example, in the folder for the smallest clubs, named 0-10000 (being the maximum capacities) there are 6 sub-folders named 'a' to 'f'. You can't know which clubs belong to which. Having said that, after I created my home stadium to have a capacity of 5000 (looking forward to a rash of promotions) whilst not altering my rivals', I have managed to retain 2 stands that hopefully will fill up in time whilst having trees and fields behind the goals. Other local clubs have no stands at all.
Into my 4th season the crowds are still in double figures; whenever they increase to over 5000 I've given myself a bit of a problem but I'll either just use FMRTE to increase the capacity to 10K or fiddle about and try to restore the stands I deleted. Then when we exceed that it'll be time to extend the stadium or build a new one. We'll move into the second folder of 10-20K which I haven't touched, but I'll still alter the outside scenes to a rural feel.