Problems With Blogspot Blogs In Seo

We all use blogspot blogs,but do you know what drawbacks you are facing while using this free blogger service.Well i am not saying you not to use blogspot service,but want to make you aware of what you are gaining over here and what you are loosing over here,so as to make you aware of every aspect about using blogspot blogs leading to its pros and cons.I will share here different problems with