The K in Keep.

[TheOneAndOnlyy]

And now YoU MUst KeEP This page OPEn wHilE yOu play
Come on, you can do it Raz, I believe in you! xD

[Enoki]

yOU Must KeeP THIS PAGe Open WhiLe You play
Almost there, deary. Just lowercase all the letters that aren't first in the word. If ye get it right, I'll give ye a homemade chocolate chip cookie.

EDIT: Oi, I think Raz set it up so that ev'ry time we r'fresh, some new typoed version appears. Arrrg, 'tisn't fair. We want perfection! 

[TheOneAndOnlyy]

yOU Must KeeP THIS PAGe Open WhiLe You play
Almost there, deary. Just lowercase all the letters that aren't first in the word. If ye get it right, I'll give ye a homemade chocolate chip cookie.

I'll join in and give ya some brownies and a cake

[yourlocalcrow]

YOu mUST keeP this PAge oPEN WhILE YOU Play

YOU musT kEEP tHIS pAGE open WHILE yoU plAy

YOU MUST KeEP ThIS Page open while You Play

YOu MusT KEEp this pagE oPen WhiLE you plAy

This is the best April Fools joke I have ever seen. *slow clap for Raz* It's beautiful! Refresh the page for a new obnoxious capitalization error! I can't unsee it now, and I absolutely love it~
thoughsereiouslypleasefixthisbymaytheperfectionistinsidemeiscringing

[greenart6]

ive created a monster

[Wyldercat]

ive created a monster

But it is still our child. EVeN iF It IS a MoNSTRosiTY.

[CosmoFursi]

I'm crying from laughing so hard xD

10/10, guys xP

[Kerriki]

Oh dear, that Raz. Somehow I'm not surprised about this x'D

[CeramicSoul]

I'm so proud of you Raz -cri-

[Hakumi]

The New Login Page Is Beaut. ?
Let all the letters rebel now , They don't want perfection. - Sheds a lone tear - Well done. o;