AndyA - 5:30 pm on May 5, 2012 (gmt 0)
I have just been doing some spring cleaning on my website to cut off some old or outdated articles and the like.
The one good thing I can say about Google's algo updates is that it does motivate me to take another look at my site. Each time, it seems I find small problems that need to be fixed. For instance, links to images using www in my domain, when I have the server and Webmaster Tools set to redirect to non-www. A minor issue, but is it enough to cause a problem?
I also found the a href= part of old links on a few pages, with no anchor text. I probably removed the link years ago, but my html editor failed to remove it completely. Again, it might seem like a minor issue, but is it enough to create a problem with search engines?
I've always believed Google and the other SE's are willing to look the other way up to a limit. But once that limit is passed, every mistake you've made counts against you and could cause a problem. If you keep your site under that threshold, you're OK. I have nothing specific to back that statement up, it's just a belief I have. We're all human, and html editors aren't perfect, but I do feel better every time I discover something and fix it. When I upload the corrected page, I wonder if that one change will help.