2022-P Maya Angelou Quarter Error

I have seen a few come up on the 2023 Edith Kanaka Ole but yours seems to be more visible in comparison. http://goccf.com/t/445601&SearchTerms=rust

There are also errors called a Struck Through Grease filled die (or just "filled die") error.". Grease strike throughs are very common for the most part, they're probably the most common error type besides laminations, and in the past normally only grease strikes which have obliterated large areas of the coin have any decent added value. The exception are coin series which are rarely found with errors of any kind. An example would be a 5 oz America the Beautiful coin, which is a series rarely found with any type of errors. But even for a coin like that, the strike through needs to be fairly large to really add much value. At the moment all these grease strike throughs including the minor ones are however generally selling for a small premium despite some being quite common, and some are more popular than others such as the 2005-p kansas in god we rust you mentioned is pictured below , and obviously when enough is missing to entice some of the more serious collectors is where the values tend to be higher.

mild grease on the die near the rim caused this weal impression of the I and T seen here.

A Struck Through Grease filled die is considered an error yes, and generally is common. Only those obliterating large areas of the coin are typically the more sought after although those like the in god we rust are also generally selling for a small premium despite some being more common. I was just mentioning that A) your coin is not really missing the letters as compared to the in god we rust and the other 2023 I mentioned and B) There are new machines at the mint and so we need to get better info on whether the issue is caused by 'grease' as before or something different.