I make it a personal policy not to comment on posts about the big three... politics, religion, and money.
Sometimes I will to make a statement, such as "I'm a Republican", "I'm a Christian," or "I spent $250 on our crib". But when the conversation goes towards a discussion about beliefs or opinions, I nope the heck outta there!
The reason I do this is because I get too heated too quickly about hot-button, personal topics, and I don't find that I respond well to posting on internet discussions about it. In person I'm much better since a face to face dialogue has more opportunity for mutual understanding and discussion. Since I only Hellobee for pleasure, I try to avoid these topics. Sometimes I'll read through other comments and vote on polls.
I have a similar policy for Facebook and all other social media as well!