Originally Posted by LGCG
Here's my question- How can you really tell if a website is hurting you? Do you check that website's page rank and/or monthly traffic? Or can you tell by looking at it that it's spammy?
This is the problem. It is very difficult to say absolutely, definitively, if you may have been affected by 'bad links' as opposed to some other Google (or Bing, or ...) algorithm change.
This gets even worse trying to say any specific site may be the culprit.
This is why, unless you are as sure as you can be that you have been negatively affected in the SERPs (i.e. ranking drop or removal etc.) and can be fairly (or very) certain that it was as a result of this or that or these links I rarely advocate removing them.
You are as likely to remove 'good' links (whether they should be good is another matter) as you are bad links.