Ohh, that's an interesting one, it should address most of the CP being wasted on capped stronghold grinding without outright disabling any buffering against attacks. But not everybody is going to notice it and stop reinforcing capped strongholds if the change continues to be fully undocumented and not mentioned anywhere on the UI... it's a big problem with these new multipliers. It's not enough to list them individually since they're all stacking with each other.
It's becoming a huge mess to try keeping track of what really matters - how much CP your actions actually did when there up to 4 multipliers in play.
Only if people know what's going on. For Grom, one of our capped strongholds is also a premier plat mining spot. So it's forever over-capped all the time. If you look up how to make a ton of merits, you can find the plat mining map for it, you run that, you sell your goods, you get some merits, and you don't realize this isn't anywhere near as good as it is.
Omicron Capricorni B has had 417,727 control points put into this cycle so far, the cycle when reinforcement was further nerfed 2 different ways, and people are still pumping platinum merit sales into the system.
EDIT: And the decay mechanism means next week a ton of people are probably still going to pump into it, and cap it again, so the nerf to overcap merits also fights with decay.
I think the in-game UI should list both control points generated, along with merits, and ALL the merit penalties at play, if that's the road we're going down. Some players might question a 6 month old guide on merit rates if they see 3 separate penalties pop up. (base -35% penalty, no recent UM penalty, overcapped status penalty) Additionally even if the in-game UI doesn't list it, all the information should be listed in the merit log journal entry. Action, control points, penalties.
The overcapped penalty should be removed from exploited -> Fort and fort -> stronghold promotions.
Finally, if Fdev really wants to address why UMing isn't going on, they need to address the UM levers. They're all so weak except for settlements. UM Mining can be ok but since no one gets an ethos bonus no one does it. Add a better bulk trade UM lever (smuggling as been suggested by many people in this thread in other threads, and would be great). Make the standard UM penalties lower.
Organized Groups have the information and capacity to educate and teach users that these merit penalties do nothing to slow our actual goals, sure it'll affect how some merit seekers play, but even now they aren't incentivized to UM, the highest merit rates are still in acquisition.