I've seen such posts but I just chalked up most of them to the diversity of opinion that exists among conservatives which often manifests itself with a vengeance on FR. Some may sincerely think we are just wasting our time on that now-blunted (unfortunately) issue while the Obamination's defects present such a huge target.
I used to think this way, too. However, since Obama came on the scene, the internet discussion boards have been flooded with paid operatives. These people are paid to post on forums like this very one, manipulating people's minds. Some of them are very very good.
Also, look up "concern troll."
Once you're aware of what they're doing, you'll start to notice it more and more. And they're doing it BECAUSE IT WORKS!
There was a freeper (now banned) called MadisonChristian who posted during the uproarous time of the ObamaCare debates who is a good example of the manipulation used. She/he was always very nice, but constantly posted about her daughter with preexisting conditions and she couldn't get healthcare and how she got healthcare when she lived in Britain, but she/he really thought ObamaCare was terrible (see http://freerepublic.com/focus/f-news/2298450/replies?c=20 for an example).
Be alert! They're out there, they're working hard because the propaganda and brainwashing works. We have to be very alert not to be taken in.