his calvin klein campaign is also amazing ❤️‍🔥❤️‍🔥 glad to see how they incorporate his own motifs/interests into the ads

i don't know what moment / occasion you are referring to but that's common practice in SK

He could have easily just used '되세요' as it is the most common polite speech but tying it with the previous sentence he went for a higher polite form to express his wish with great respect and formality.

[Note: All assumed pronouns are placed brackets]

+ It is a very polite considerate language showing care towards an older/authority.

맛난거 많이 먹고 가족들이랑 행복한 시간 되시기 바랍니다! | (I sincerely) hope* (you) eat a lot of delicious food and spend a happy time with (your) family!

Here again, Jimin uses a high polite form used in formal speech

+++

but!!! as i tend to point out he chooses to write in high politeness in a lot of his communication to the fans so this isn't completely out of character

it is just my personal reflection based on the current context

ever since they went public they only care about their shareholder value, like any other nasty capitalist machine

i haaaate the fact i gotta give them money to support the group 😮‍💨 meanwhile mr. bang fraud pd is wallowing in money and shady market schemes with his big corp buddies 🤢🤢🤢 fuck that whole company