Regarding the latest My Little Pony episode,
I debated on whether to post this at Fandom Rant or not, but since ultimately this is a fandom activist post (and this comm has more members, so better chance of getting the message out), I felt this might be the best place.

On the 21st, the MLP episode "The Last Roundup" aired. And it featured some deeply troubling ableism in the form of the canonization of the fandom version of the grey mare with the bubbles cutie mark (often known as "Derpy Hooves", though less problematically as Ditzy Doo or Bright Eyes). (Here is a link to the scene in question, for anyone wanting to see for themselves.)

Since then, some of the more reasonable members of the fandom have been coming together to contact Hasbro and the Hub and anyone else we can get our hands on to get this fixed in some way - whether it be dubbing or removing the scene entirely, whatever works.

The following are some things you can do (borrowed from the original poster elsewhere, Sphyre):

Sign the petition to draw attention to this issue.

E-mail the people involved:

Hasbro Customer Service
(Note: you can contact them in regards to their toy line, Hasbro Studios, which is where the show comes from, and in relation to the HUB. If you use the form email, please send one for [product] Hub - [category] Hub, [product] Hub - [category] General, [product]My Little Pony - [category] Hub, and [product]My Little Pony - [category] General]. Don't bother picking out a specific product, those are only for dealing with toy issues. And the point of sending the email so many times is so that even though you're likely to get a very dismissive email they will see that we are serious about how upsetting this is.)
Email Address: hasbro@custhelp.com (requires an account to use this email - stick to the form emails above if you don't have one.)
Phone: 800-255-5516
Hours:Monday - Friday 8 am to 8 pm EST
Saturday - 10 am to 6:30 pm EST

For US residents, contact the overarching company, Discovery Networks, that runs The Hub. (It should go without saying, but please do not mention if you watch the show through illegal means.)

DHX Media, the company that does the animation (I suspect they don't have much say, but what the hell, anyone we can get.)
Email: vancouver@dhxmedia.com
Development Kids
Tel: 1.416.363.8034 x277
Other Inquiries
info@dhxmedia.com

Jason Thiessen (don't currently have contact information for him, but he has a Deviant Art page and a LinkedIn account. If anyone can get their hands on e-mail or anything, that would be much appreciated.)

Amy Keating Rogers, who wrote the script.
Contact Page.
(310) 273-2764
amykeatingrogers@pacbell.net Amy has replied to e-mails explaining that she'd had no idea about the ableist connotations of the word 'derpy' and would never have included it if she had. She also doesn't have any idea about what the Hub/Hasbro knows and whether they might have any plans to fix this. And fauxpologizing all over the place now.

Tabitha St. Germain, the voice actress. Again, not necessarily likely that she chose the voice for Bright Eyes, but it might help if she was made aware of what's going on and could help us. Has replied and answered that she based the voice on a teenage boy she knew. And fauxpologizing all over the place now.

Lauren Faust's Deviant Art page, on the off chance that she still has enough sway to help us.

BOOST THE SIGNAL. Tweet, post to Facebook, send it to feminist/SJ platforms, whatever you can think of. If anyone knows of any advocacy groups that could help with this, that would also be much appreciated.