One of the reasons i can't be fucked with this strat is the no-lifing factor this mechanic has increased (as if it wasnt bad enough already). Sure it's nice to have a mechanic against turtling, but what about someone just setting their path to a fief to travel? Maybe overnight. It's likely the crimerate will be high or maxed cos atm the threshold is far too low, and if the player doesnt check immediately as they arrive and leave the fief again, then OOPS they lose 1 troop per minute as long as they are in the fief. When you have 16 hours of travel time to the next fief are you really going to check strat instantly as you arrive? Fuck no. Well if ya dont, goodbye troops.
And not everybody can, or wants to, check strat every couple of minutes to see if they've arrived in a fief yet so they can leave before 1 minute ticks over. Sure, make an anti-turtle mechanic, just do it better.
Just dont enter the fief and camp outside. Problem solved. But no more invulnerability.
If someone come up and want to attack you, they can try now.
Running inside a fief to hide because the lord isnt nerd enough to kick you out every second was worse than what you're describing.
Right now Calradia is in chaos, so there is no real route that people feel safe to tread on. But when kingdom begins to form, with enemies/allies and everything, you will have safe route, and you will have dangerous route. If you choose to go inside the territory of someone who is hostile toward you, you cant hide inside a AFK fief without repercussion as before. Thats a realistic change of pace. I feel it will give a "SP campaign" feel, where you cant just move into an enemy fief and ask the lord for a room to sleep in.
Also in the long run, as Keshian stated, adding prosperity upon prosperity will not
ALWAYS be a good thing, since it will increase crime if you cant keep up with the trade input/output. A good synergy to decrease inflation in the end game, this + price changes will give reasoning to buy cheap and effective items until the very last day.
The major problem of these changes isnt that they are bad, but like cRPG patches they imply that people need to ADAPT and THINK.