...what I believe to be an incorrect rarity on an item? It doesn't seem like a "help" sort of items, though it kind of does maybe? Also, it seems to minor to be in "problems & bugs".

there is a link for that kinda thing in Problems & Bugs, it's in the Spelling and Grammar stickied error thread. If you do make a report there, you will not get any feedback, so either it will be corrected or it won't depending on whether it's deemed truly an error.

Thank you.

you are welcome.

Note that and are still updating item rarities, so it might not necessarily be wrong as just something they haven't gotten to yet.