A few generic message board related questions (not vBulletin in particular)

[cheat-master30]

Well, I have just been looking online, and just wondered a few things personally:

1- Why do so many sites have a separate account for the site webmaster other than that which is created when the forum is? They often have 'admin' as 1, and the webmasters as account id 2 or 3. Is it for security, or some other reason?

2- Why are so many pre-made skins, especially those for free and for free forum sites simply colour swaps of other skins? I mean, the paid ones and custom coded ones are often amazing, but the free ones are just so boring generally.

3- Why do newbie webmasters add far too many forums at first?

4- Would you agree that it is generally pretty stupid to limit viewing to registered members only? Because I swear I am sick of the amount of sites doing this, even more so those that make you have to register on their site to see a site or forum hosted by them!