Multiple domains redirected to one site ! Is it bad for that site ??

I have a option to drive big traffic to one site by registering some domains and redirecting them to that site .

Is it bad, could it affect SERPs for that site which receive traffix from those redirected domains ?

 

It depends, If all the sites have same content...you will be penalised for diplicate content....if you ar edoing 302 redirect from all other site to one main site, you are OK.

 

I wasnt thinking about any content sites, I was thinking to redirect domains only , without content

 

Pretty sure you want to use 301 redirects (permanent) for that purpose. SE's frown at 302's.