Blocking visitor IP Address for better bounce rate

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

• 
  Kapil Bhardwaj: Hello Friends, ;
  
  I have face one problem, i have my personal website and many visitors can daily visit on my website. Some time some bad visitor also come and visit only for open every website page and grow-up my site Bounce Rate.
  
  So my question is can i block there IP address because i no need that visitors. I use Windows Server.
  
  Thanks in Advance ;
• 
  Janaki Raman: Me too facing same problem. can any one suggest me to secure my website
  
  Thanks ;
• 
  Edwin Jonk: You are probably seeing this in Google Analytics (GA). This is known as referral spam. Referral spam is a form of spam where bots hunt the internet for the unique Google Analytics ID. This ID can be seen is the javascript snippet you put on your site. Once they have it they send fake traffic to GA. So when you compare it to your server log you will not see this traffic. ;Therefore, blocking IP's on the server is not a solution.
  
  Here is an article explaining what referral spam is:
  http://jeremyriveraseo.com/analytics/finally-a-tool-to-fight-google-analytics-spam/#gs.0151bf560daa4c209ae7b98034152518 ; ;
• 
  ?????? ?????: According to Matt Cutts GA data is not considered as a ranking factor, so I wouldn't bother much about it..