Are RC4 encryption important?

[B3T4T3ST3]

Someone can explain me for what the RC4 encryption are used in new retros?
This is important? Have any difference using it or not?

 

[Keiz]

http://forum.ragezone.com/f335/habbo-rc4-encrypting-decrypting-cryptography-871546/

I'd read this.

 

[The General]

Its useless. yar harr