I would like to ask is it beneficial having a lot of comments from the same website with a great ranking in alexa(400,00) but different IP address and different email address?

mmm
yes unless all the emails have been created by you and posts are posted by you in an alias
;)

Hi, Barryt!!

Thanks for your answer. It has given me some kind of peace.
Happy New Year

dear queen007
happy new year to you to ;)
b