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In my view yes. I find title plays prominent role in search engine rankings most of the time. If the blog has good title related to content that would help getting relevant traffic as well. Also the article/post tiles would play most important role in terms of search engine rankings. So it would be good to have better titles that reflects the content.
Yes blogtiitle plays very important role for displaying your blog or other blogs. Giving a rare names or something which is not related to content in your blog can never display your blog in search results. So try to give name that are mostly searched than names..