Hi am new to the forum,but definitely not new to the hosting and
SEO industry. As the initial thread asks "What are the limitations of free web hosting service?"
IMO. free hosting involves only limitations nothing else.With this I mean,you have no control over the account/data,neither do you have the privilege to upgrade from the free server.Incase you fall short of the alloted free resources and wish to upgrade,you are no longer allowed to retain the free server account.And as a matter of fact,as your website becomes popular and you get high traffic,you are bound to fall short of resources.Now when you upgrade the package cost would be high and what you have saved by choosing free hosting would all be gone in the coming months to come.