What we really need is a thumbs down option like on YouTube. Enough thumbs downs and the comment gets hidden unless you click to show it. Moderators don't want to "cull" off target comments and advice for obvious reasons, and much of it can be subjective anyhow, but like Seamus said, sometimes...
An enemy of your roaches! You must eradicate! Don't use an insecticide! haha
If it didn't have so many creepy legs, I'd say it looked like a nice treat for a gecko!