To coin a phrase from Waynes World, There is absolutely noting wrong with your Blog in posting your thoughts and feelings based on any subject, as long as it not slander of course. Feel free to talk just about anything, current topics being usually the hottest items, and do not be afraid of comments on you articles.
Why? because you will be emailed the comment prior to you accepting it to be published on your Blog ,or rejecting it and at the worst case banning futher comments from the individual in the future. Thats alot of control. Your Blog is your online diary and it should be taken as such, not so seriously and with a pinch of salt.
Your opinion matters and happy Blog hunting
Philip