I don't think it is a rude action. Okay, it helps to remind you about birthdays etc, but you don't need to sit there everyday sending unimportant messages to people who don't really give fuck about you. Same goes for pics and events. Most things there are fake so why waste your time with that?

Does anyone even use Facebook anymore?

I don't think it is rude, it is more relaxing to take a break. If you have people you connect with touch it lightly and so often. 

I am personally done with facebook, its over.

Honestly, if you don't like the Drama... or find yourself annoyed by the people who are constantly posting things that don't rub you the right way, then avoiding facebook is not rude, 

Nah, Facebook is gonna be the CIA when Amazon takes over the world and Bezos is the Minister and Secretary of All The Earth's Regions (MASTER).

I don't think it's a social anomaly but there is a convenience of having Facebook. I toured this University once and they told me it would be difficult to find housing without a Facebook.

Facebook used to be a way to connect with people and share life moments. I enjoyed it back then Now its all about selling me something or look at this game or other crap no one cares about. All they want is too get your data and sell it. So basically.... who cares about them

never used facebook and never will, had no need

Frankly, Facebook is annoying. 

I don't think it's rude to avoid Facebook.

well Im not really active playing facebook

Have not been on FB in years, so, no not rude to ignore it.

I rarely use my Facebook now a days as its gone really boring

Avoiding Facebook is really common sence according to my knowledge to how they handle their data they collect on us all

if it is im about as rude as they come (:

No it is a time stealing site, if anything avoiding it is healthy.