Think first?! (reaction to a negative comment)

(begin rant)
I've been writing this blog for a LONG time, and I know I often talk about things that might make people feel uncomfortable--that's the road I've chosen to travel.   I have other blogs, on other subjects, and I often get negative comments on those.  But on this blog, NEVER have I had anyone say anything bad...until now.
(I'm not talking about spam--I'm talking about rude.)
I recently did a post about what Alzheimer's cost my family in terms of Social Security income.
This is what someone commented:   
"Some people don't think about their retirement thoroughly. And they take important steps before thinking about it twice or asking an expert."
WHAT?!  My dad retired because he had ALZHEIMER'S.  Did you miss that, jerk?  And my mom retired to be a CARETAKER for my dad, who had ALZHEIMER'S.   
There is nothing to "think about thoroughly" when you are sick with a fatal illness, or your spouse is. 

And if you are implying they should have had investments, I didn't even get into that in the other post.  But I will now.  My mom had a nice 401(k) and some other savings.  But there is a thing called a SPEND DOWN where the government makes you spend ALL your money before you or your spouse can go on Medicare.  So the retirement she did plan for instead went to $10k a MONTH on a nursing home until she ran out of money.  How do you plan for that, huh?  You got an extra $120K a year just lying around waiting to be spent on nursing care?  Good for you, I hope you live a LONG TIME and suck up all that money and someone comes along and tells you that you should have planned better and died quicker.
(end rant)