twitter like simple profile url for vbulletin 4 ?

I have 2 question :

1. can we make a simple profile url with vbulletin 4 + vbseo ?

to be like this : www.myforum/myprofile ?

2. Why did vbseo remove @user tag plugins from dragon-byte ? is it because the @user tag plugin resource hog ?

Yes, you can use urls like that, but there may be conflicts if you have similar usernames or allow special chracters (ie, bob-bob and bob$bob would both get a bob-bob/ url, and only 1 would work).

the tag plugin simply didn't work.

1. can we force vbulletin user to have letter only url in registration ? i mean disable special character and numerical character like "-<7"

2. you do not answer my question in regard to @tag user plugin removal in vbseo forum ?

We are sorry but we don't have to explain things related to a third party modification. If you are requiring feedback , you can request it within modification author.