If you value privacy and want to post your voice anonymously online, then don't use or even support tools that you cannot understand. Who cares if things dont look "professional". If they are professional then they probably were created by someone you don't know with intentions you don't know. A perfect blogging site in my mind is one that you own, hosted using a domain with privacy protection and is written in code that you can understand. Basic code knowledge is a must if you want privacy