In my opinion the main problem with over scouting (going beyond the number of provs to enter the next chapter -or- not being able to win a fight -or- afford catering) is when the game starts requiring orcs before you can produce them. It'd be nice if that one caveat was prominently mentioned including when that occurs. Seems like it was ring 10 (please, please correct me if I'm wrong) I liked the idea of the banner on the world map someone suggested. It made me chuckle, but I know that's impossible. It made me think of "Abandon all hope, ye who enter here."
There is another problem with over scouting. There are now event quests requiring either fighting a world prov or using pet food. Pet food is a scarce commodity for many people, especially those in the early chapters, and fighting can become impossible with over scouting. Also,
@Mykan and others have mentioned how even without over scouting it can become very difficult to impossible to win battles between chapter 3 and dwarves. So it's another hamper to the newer players who may not have the spell frags and relics to make pet food or have used the have. They are blind sided by quest 7 in this event. I think it's not fair to many players.
As for myself I tended to not over scout until after orcs. I needed the advanced scouts tech's cost reduction since it is the cost of scouting that determines how many troops they will bring and the cost to cater. That is how I have played the game. Now I'm scouting 24/7 since it takes over 5 days to scout. I tend to only clear them for events. I've cleared 663 and have 18 ready to clear when needed.
As for a lot of the conversation here it doesn't matter. It seems like a lot of trolling and reacting to the trolls. You aren't going to change intrenched beliefs here. Please, just let that aspect of the thread die a horrible death and move on to something constructive.