Newegg won't post your reviews if you give it a low rating. However, unsatisified buyers, do not frett. There are still two ways you can make your voice heard. Either, A) give it a low rating and dont write a review. The rating is still counted toward the items rating. I've discovered after noticing an item with 3/5 stars and then reading all the reviews with 5/5 stars. Perhaps you wish to be heard more thoroughly? Ah. Option B) Give it 5/5 stars and write the review however you want. I've seen this done numerous times. Newegg might catch it somtimes, if they have someone manually go through and check, but I've seen many 5/5 that totally diss on a product.
Anyway, I don't mind all of that too much. I've seen other sites do it, too. It doesn't make much business sense to put up a few peoples bad experiences with a product yet still carry it. Bottom line is you have to know what to trust.
Newegg has VERY competitive prices for nearly everything they sell, not to mention they have unsurpassed speed and customer service. That makes them a winner in my book. Even if something is a few bucks more at newegg I'll still get it there just in case there is a problem, and so that I get it promptly, and to support a great company.