"I added bacon to my milkshake because bacon!"

This is close to being complimentary, but it comes across as more of a compliment to Joss Whedon than the subject. At best, it's a neutral expression of fandom. At worst, it's an admission of fanboy (or fangirl) proclivities. Some sort of context is needed to clarify which one.

I like this

Because reasons

I just read about a Harvard psychology study where someone asked if they could cut in front of the queue at a library copy machine:

* If the cutter asked without giving a reason, they succeeded 60% of the time.

* If the cutter gave a legitimate reason like "I'm late for class", they succeeded 90% of the time.

* If the cutter gave a lame excuse like "I need to make copies", they still succeeded 90% of the time!

So "because reasons" is not necessarily any worse an excuse than any other.

My favorite example of this one: http://24.media.tumblr.com/tumblr_lnw17vhAgu1qhhhaco1_500.gi...

Again, this is declarative, not complementary. Or maybe you agree with me. This extreme brevity is very ambiguous.

X was awesome because uhhh stuff