I know that some of my blog readers have been experiencing problems leaving comments because of the "word verification" that I had installed on my blog. I've had the same annoying problem myself trying to figure out what the distorted letters/numbers were supposed to be.
So I removed that and then the spam started. In an effort to stem the spam, I installed a block that forwarded all comments to me for review before I allowed them to be posted. Now I just get spam waiting to be vetted by me!
Sorry to say I have had to reintroduce the "word verification" .... but please keep reading my blog! Thanks, everyone.