When someone visits my website, in addition to their ip and service provider I get (with a basic free stat gatherer-I could get a lot more info if I wanted to spend a few bucks a month):
WinVista (1024x819x32) -operating system and screen resolution
MSIE 8.0 (JavaScript: 1.3, Cookie: Yes, Java: Yes) -browser, java, etc
WinXP (1600x900x24)
Firefox 3.6 (JavaScript: 1.8, Cookie: Yes, Java: Yes)
Neopets can tell that you are using different computer and you can trick them into thinking you are.
Changing your screen resolution and color depth is the easiest. Even installing and using different versions of the same browser can make them second guess suspicion. Also, through an elite proxy they can see your browsers addons which was mentioned earlier. Not a big deal and you wont get iced for it, but when deciding which of the 10 accounts they are thinking are yours having a different version of firefox with different addons installed and only used on a specific account will help
If you really, really, want to protect your account you can uninstall the latest java update leaving an older version and then reinstall.
I wouldn't go through any of this trouble for shells, but to make sure my main isn't linked with anything, I'll do anything. If you really wanted to get complicated you could run duel operating systems on different partitions and use one only for your main account (say you use windows 7-install xp on a separate partition and only log into your main account from xp.)
If anyone finds this interesting/useful pm me and I can explain how to do some of this stuff if you aren't computer savy.
p.s If you are savy and want to run a bunch of very, very legit looking accounts get a couple flash drives. Install live versions of different operating systems (one per flash drive) and set your bios to boot from usb. Tweak everything to run bare bones because flash drives are way slower than ram and tada as far as neopets is concerned you ARE on different computers.
Edited by bobsauce, 01 September 2010 - 10:48 PM.