[hamed]

@hamed

Hmm. What you have said is not exactly related to the topic since it's about the Title Tag. Now it's true keywords have a great importance. Like if you sell flowers then the word Flowers and related terms to your business become the most important things. But keywords alone can't do anything. As a matter of fact Google as decreased the value of keywords in SEO. 10 years ago you could buy an exact match domain name and create a site with bunch of 500 word pages and ranked well. You just had to make keyword density is around 10%-15%. I have done that and earn well from born Amazon and AdSense. Then they has realized the problem and fixed it. So today exact name domains have no real value SEO wise. Also Keyword Density should be around 1% for 1000 word article.

Thing about Title tag is it has survived all of these Google purges. And another thing is the your title tag is the first thing visitors see about your site. They decide if they visit your site or not from that. Sometimes people visit 3rd rank site in Google search because it has a catchy title than #1 and #2. Yep having 1 rank for search result doesn't mean everyone come running for your site. You need to makes sure There is very catchy title and description. This is one reason why we should use description tag rather than let Google to do it for you.

You have mentioned good and useful points.
if you have little reason to use keywords, then google does not care about the keyword.
as you search results on Google, search results will be displayed according to your country and your city. SEO is very complex and there are a lot of things to keep in mind when typing it.
but in a nutshell, SEO has three things to consider: optimizing the sites layout and the proper domain name for the site title - High and useful content as well as the use of appropriate images - Copyright laws and the like