AlphabeTube is a user that posted videos that have his logo, punctuations, and letters. The reason he posted these is for people to favorite them and have a message on their favorites, such as someone favoriting Y, E, and H, it would come out to say HEY.

A

W

'S

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?

!

A

B

C

D

E

F

G

H

I

J

K

Leticia​

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z

Black Screen

Small A

Small B