Searching giveaways by Contributor $

Wish it was. Or just filter by contributor alone would be nice.

I don't think so but it is possible to filter the ones you can or can't enter with SG enhancement addons.

The site itself doesn't have too many filtering features, so probably not without an add-on. I think the SG Enhancement Add-on will do it though. It has "C.Green" and "C.Red" filters, which should list contributor giveaways that you can and can't enter, respectively. If that's basically what you want, give this add-on a try. I hope this helps.

Go to find - type in contributor and let the magic happen otherwise you can try that "add on"

So no

use Add-on :)