A guy with a lot of names.

[Treynolds416]

HMM I WONDER WHY HIS AUTHENTICATION WOULD FAIL

[Ad Bot]

[st8terblock]

-snip-

fixed

[hodototman]

Just counted and there is about 6110 names
EDIT:This is how i counted them:

oh k

[bithead9]

At the beginning of the list, the names look like something someone would put into a search engine.

[st8terblock]

At the beginning of the list, the names look like something someone would put into a search engine.

ikr

[Blocklandian¹]

do not change name plz
Just give me some time.
stop changing names!!!!
ban this key badspot
Stop Changing This Name
StopChangingSlender
STOP IT YOU LIL KID!
DontChangeSlenderman
Shawn123 please stop
===Stop Changing===
LetsAllAgreeOnSumthing
Nobody use this PIN
Slenderman please stop
STOP CLICK NAME IT
thats not my account
thatss not my account
DONT CHANGE THE NAME
tails who are you?
not touch this or die+
sgtronaldo not touch
MyKey!
KeyHacker
HeyGuyIt'sMyKey
STOP CHANGE NAME NUKER
I SAYT STOP CHANGE NAME
ok take key i dont want
i want play now
can i play plz izh?
izh :/ i givet qwestion
noob say IT TO ME!
DONT IGNORE ME
DONT change
YOUSTOLEMYKEY
dont change name guys
No You get off!
No you get off!
dont chage the name
Stop changing!
Please stop
then give me other code
no i mean gift code
ifyouchangethisuareJB
DONTMESSWITDIS
need code :(((((((((
i need code (hacked ):(
i need code hacked :((

Definitely being shared, I'm assuming he gave it to someone and they give to others and eventually  thousands of others started to use it.

[DrenDran]

I've had a few name changes that seem odd looking back:
http://forum.returntoblockland.com/list.php?cmd=view&id=22749

Haven't changed my name once since may 2011 though.

[Treti]

"no i mean gift code"
"deadtits"
"davidarias[randomnumbers]"

what the hell is this guy the devil or something

this is kind of creepy

"DARIASDEVILDAVID"
Kind of ironic...

[Steve5452]

"monday stp changing nam

stop changing name"

and there's lolipop_man + variants and the david varient
It's gotta be a shared key.

[Cool Boi]

http://forum.returntoblockland.com/list.php?cmd=view&id=23137

mr poopy poop poop

[Blooker]

monday stp changing nam

[Steve5452]

I've had a few name changes that seem odd looking back:
http://forum.returntoblockland.com/list.php?cmd=view&id=22749

Haven't changed my name once since may 2011 though.

You think yours are weird
http://forum.returntoblockland.com/list.php?cmd=view&id=8695

[hodototman]

http://forum.returntoblockland.com/list.php?cmd=view&id=23137

oh god I lol'd

[Axolotl2]

You think yours are weird
http://forum.returntoblockland.com/list.php?cmd=view&id=8695

http://forum.returntoblockland.com/list.php?cmd=view&id=16180

[Steve5452]

http://forum.returntoblockland.com/list.php?cmd=view&id=16180

oh god lol