I hope this is the right place to post this... In wordpress, if you have a post and about 5 different categories that post falls under for your site will that hurt you with SEO... i know wordpress will have 5 different areas you can find that post under but each archive area has just a short excerpt of the post... that should be fine right? It wont count as duplicate content will it?
yes you are right. there will be a issue of duplication content. but if you want to have a post under 5 categories and do not want to make copy, you can disallow to crawl categories of sites by using robots.txt like disallow: /category1 disallow: /category2 disallow: /category3 but sure that it will be implemented globally for a site.
It can. What I do is block my archives and tags (even though I don't use tags), and use the Category Base Killer plugin (since I'm not about to remember which line of which file I had to hack to remove the /category/ base path from the URL string).