Should I be concerned about PR?

Selected answers from the Dumb SEO Questions Facebook & G+ community.

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  Steven Ciccantelli: What am I doing wrong? Google PR 0 Moz rank 4.1 and trust 5.3.I am not being penalized by Google could a robot on website be causing Google to ignore me? Or should I not be concerned?
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  Jim Munro: I am not an expert but I do not think you need to be concerned, Steven.
  
  I'm sure that Google is constantly applying PR to your site but just not showing it to you, yet.
  
  When they do, you will have no way of knowing whether what you see matches their rating. If you are doing everything right, I would just relax and ignore it.
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  Michael Pellman Search Marketer: Hi Steven,
  I think we need some more details. How old is the site? Also, don't concern yourself with PageRank.
  
  Also, is the site you're referring to the site listed in your profile? The taxi site? If so, you need to focus on the local aspect and I can point you in the right direction. 
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  Steven Ciccantelli: +Jim Munro I think I am doing everything right and it is that taxi site.One thing positive I have noticed is that my blogs both Blogger and WP when posted are pushing the competition down.
  Have no clue if that is because of authorship G+ or whatever but it is kinda nice that Google rewards my Blogging efforts in my local area of expertise.Seems that Blogger has more power then WP for my local market.So thank you I will try not to worry about Google PR.
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  Steven Ciccantelli: +Michael Pellman Search Marketer Thank you as well.
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  Dave Elliott: I believe pr hasn't been updated for a few months now and wont be for the rest of the year. Moz rank is an equivalent metric with a few slight differences but updated a lot more frequently. If your moz rank is going up or is acceptable to you, you are doing nothing wrong.