But ads don't provide money until clicked on. So there's no money lost by implementing ad blocking. The only real thing lost is the potential that someone will click on the ad.
Remember, we're discussing a blog here. CPM, with rates in the $2 range, are not going to provide anything resembling reasonable revenue - let alone profit - for a blog post.
There are notable exceptions to this for bloggers who can get hundreds of thousands of views on a regular basis - but most people are lucky to get a thousand unique views.
CPM, for a personal blog, is going to provide negative revenue (the cost in time and upkeep of the advertising platform and integration). Do blog posters really think that alienating someone over their decision on what to render in their browsers is worth that 2/10th of a penny?