Q:

Meta keywords random keywords

I was wondering what about having random meta keywords instead of fixed one?
I have a blog, so every blog post has some related tags, in my home page i show the post's previews, so i put in meta keywords all the main blog post's tags i show.
Is it a good practice?

A:

Meta Keywords are useless for SEO, and random meta keywords are useless for everything!!!
Read wikipedia:

in September 2009 Matt Cutts of Google announced that they are no
  longer taking keywords into account whatsoever...
  In Oct 2009...Yahoo!'s Senior Director...states that "...What
  changed with Yahoo's ranking algorithms is that while we still index
  the meta keyword tag, the ranking importance given to meta keyword
  tags receives the lowest ranking signal in our system.... it will
  actually have less effect than introducing those same words in the
  body of the document, or any other section."

from: http://en.wikipedia.org/wiki/Meta_element
Or dozens of other questions here on Webmasters:

Do meta keywords have any impact on ranking algorithms?
Meta keywords single words or phrase?

