I can’t answer you, because I find polls posted as “post your answer” rather than as an actual poll are repulsive.
Perhaps there is a lot of mold in your office?
I’d give 'em an 8 or 9.
BTW, dendritic patterns are definitely ‘hard-wired’ in our brains. They ARE the ‘hard-wires’ of our brains, love 'em or not.
I only find such polls only mildly repulsive, can’t say why, prob just wired that way.
They’re no trypophobia.
We do, in fact, have a “tree” imprinted on our retinas. Most of the time you can’t see it, though.
I’ve got a youtube video on how to make dendritic patterns with paint and two panes of glass - so I have some actual gathered stats on whether people like them:
39,000 views
1187 likes
6 dislikes
66 comments, all appreciative
So I would say it’s not hardwired into our brains to find them repulsive, unless those that did, all ran away without saying anything.
I love watching videos of this process. So cool!
I’d rate my dendritic affection at a 9. I’d boost it to a 9.5 (not painting one on my house) only because some moss agates with dendritic patterns look rather gross. Even worse than the nasty molds they resemble.
Funny–that’s the one I thought of, too.
Boss, or maybe office-guy-who-is-always-arguing, or maybe office-weird-guy (sorry!) says, “You that know that the sun rises in the west?”
Other guys in office trying to get some work done, “Yes, sure! Whatever you say.” 
Well, yeah, but you work at TreeAreScary.com.
Made me think of ‘lotus boob’, which curiously doesn’t show up on a google search anymore.
Jesus. Holy. Fuck. Kill me now. Dear God. Now how do I erase that from my brain?
Carrying on: the dendritic patterns are okay, but thesemake me gag. Don’t know what to call this pattern.
I’ll be the first to vote an exact 5.5 - precisely in the middle. I don’t care about them either way.
These guys make 3D Lichtenberg figures in blocks of transparent plastic by irradiating them in a particle accelerator (shown around 1:15) and then tapping with a metal pin to trigger a rapid discharge, i.e. lightning. Discharges are shown around the 3-minute mark. Final products shown around 4:15.
Not by searching YouTube for “mangoworms.”
I’d call it reticulation (the crosshairs in a rifle scope are called a reticle).
No google image searching for me! I’ve learned my lesson!
As in the Reticulated Giraffe.
From Latin reticulum, a small net. Perhaps better known than reticle is a reticule, a net handbag.
From Dr Samuel Johnson’s Dictionary of the English Language (1755):
Network:
Any thing reticulated or decussated, at equal distances, with interstices between the intersections.
Reticulated:
Made of network; formed with interstitial vacuities.