I do see the utility of at least listing mods etc. in the sig so as to avoid having to regurgitate that information ad nauseum, however I will leave that debate to you gentlemen!
So many times a member will post a question in let's say the 2000-2006 section but never tells what they are driving. At that point, some of the answers are assumptions. Waste of time that is fixed with the year, make, model and mods listed in the sig section. Much faster repair responses that way. For some, that makes too much sense.