Here’s my take
 
Tumblerina Hamplanet has a “personal attack” vibe to it  
Diabetty, while humours, is also pretty crude  
Whoa nelly is a pseudo-expletive countryism, not a name.  
Nasal pony is just an adjective descriptor
 
Tumble Hooves gets the point across while remaining innocent.

Satan trips confirmed it to be

@Ridley Wolf
 
Right- both of which aren’t straight-up advertisements for Tumblr. IMHO, slapping a company’s name into a choice for a fanpony just means it has zero chance of actually becoming “official”, like Derpy did. I mean, are we gonna take something like this and make it a cruel joke that’ll guarantee we never see stuff like it again, or work with it and have fun instead?

AND YOU GUYS COMPLAIN ABOUT HER IN THE BRONYCON ANIMATION  

 
BAM!!

@CogWeaver  
You jerk.

@CogWeaver  

@Background Pony #C959  
Yeah, good point
 
@WanderingPony  
No, but now we should. It’d have to be a pony we really hate…  
That’s it, Blueblood’s first name is Instagram.  
Prince Instagram Blueblood.  

@WanderingPony  
Don’t you remember the Grumpy Cat pony? His fandom names are Sourpuss and Red Edit. There is a precedent here.

I like it. It’s less likely to offend anyone right away.

@CogWeaver  
So why would you associate this poor pony with tumblr, then?

@CogWeaver
 
So why go straight up with naming a pony something that shitty? “Tumble” is a real word, “Tumblr” is…well, a crappy thing to inflict on anyone for a name. Even this one. What are gonna do, name some other one “Instagram”?

lmao the fk

Who came up with Whoa Nelly? That’s a pretty good one, too.

I prefer tumblrina hamplanet

Yeah, I’m good with Tumble Hooves on this one.

I still want Diamond Betty.

kek

We should come to a consensus, lest we have another Derpy/Ditsy blowout.  
Tumble Hooves is shorter and probably easier to remember,  
But Tumblrina Hamplanet sounds more fun.
 
I mean at least we can all agree Tumblr is shit amiright?hahaha

Tumble Hooves the demon pony.

Satan trips to boot! o.o’

That’s… actually a really good name.