1. Visuals
Pictures (and gifs and video) make an impression in ways words don't.
The difference between

and...

2. Must. Have. Order.
We are pattern seeking creatures so lists and pictures help us connect the dots.
This...

makes you feel like this...
But this list is perfectly okay...

3. Fewer words are easier to understand
We have shorter attention spans. We want instant information and to move on to new things quickly.
How anything more than three sentences makes you feel:
But add some GIFs:
4. We choose what we want to see
In psych terms this is called projection. We project our desired wishes and feelings onto stimuli. What you choose to read on BuzzFeed is like a giant inkblot test.
5. BuzzFeeders very wisely play off our sense of nostalgia
We like relating new things to what we already know and are comfortable with.
Like this...

or these Silicon Valley artifacts...
This...
And even...

6. Being the first to know
We want to proudly let people know we saw the band before they got big... or that a dingelhopper is a fork... or any bit of knowledge that means you're on top of the gossip food chain.

7. And unless you're hipster little mermaid, you can share it all in a never-ending cycle of BuzzFeed goodness
This helps prove that we're special and reinforces a certain degree of narcissism.