to be miffed at gifts given are scorned in social media?

[Quintessing]

Isn't it rude? Ungrateful? Bitchy?
Should a gift not be accepted gracefully rather than people commenting how horrid it is in social media?

It would be ungrateful to slag off a present on social media, but some people have no class

Recipient should remain gift-free in future.

Its on a par with oooh look at how many gifts dc got with a picture displaying them.

Don't look a gift horse in the mouth.