That's the problem, though--if you've never tried to remove a chip of higher than level 3 when you check the "don't show this warning again" checkbox, then you never at any point saw a warning that removing chips of level 4 or higher was going to cost gems. All you as a player knew (assuming you weren't told by someone, which is an exceptionally poor assumption) is that every time you clicked to remove a chip to merge them into a bigger one, you got an annoying popup even though there was no cost, so eventually you checked the box to make it stop appearing.
Then, well down the line when you do have a level 4 chip embedded, you click on it and boom, you're out 100 gems without ever realizing that it was going to cost you anything to remove that chip. In fact, since there's no onscreen indication thereof, you might not even realize you had done it until you looked at your gem counter later (if you had a lot of gems, you might even do it multiple times without realizing).
In fact, is there even a way to find out that it will cost 100 gems without actually using them up unless you try to do it with less than 100 gems on hand? Unlike most other things (unlocking slots and such), hovering doesn't show you the cost, just the chip stats. That's how I found out.
Beyond just "good"--I'd argue practically required when early in the game you've got things like the remove chip warning that is nothing but annoying, but later becomes a massive penalty, and something anyone in their right mind would want turned back on. This just bit me when I mis-clicked, having turned the warning off long ago before I realized that the penalty for doing so was so large down the line.



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