MurryMom is largely a troll. Her posts generally consist of the words "Dumbya" and "Repugs" arranged with some useless filler in between. However, because she is so obviously harmless the PTB (Powers That Be) decided to let her stay so as to provide target practice for the FReeper wits.
While FreeRepublic is mainly for conservatives to discuss and argue, a respectful (no flame bait, no hit-and-run posts, etc.) liberal will most likely not be canceled. Besides MurryMom I think there are other liberal or left-leaning posters who have not been zotted (cancelled).
As a liberal you may be outnumbered here and feel under siege. Just remember that there can be more ferocity between conservatives than against liberals. Just look at some of the threads on free trade, immigration, and tax reform. You might be surprised to find that we are not all bible thumpers (look at the creation/evolution threads), nor hicks (look at some of the science/technology threads). If the politics gets too much there are always the humor threads.
When things get bad and you feel alone as the sole liberal on a thread just remember there are some libertarians who get it far worse than you. :)
That probably was an unfair observation on my part...MM doesn't truly rant (in my estimation), my experience has been, she's more likely to dash out and snap at your exposed parts, exchange a few pleasantries, and then go dormant for a while.
There are several self announced liberals here, and IMO, some who are hiding it, but that's not necessarily a disqualifying factor from what I've seen.
Abiding by the rules gets people a long way here.
That's a big difference between here and DUmmyland....we're conservatives...we believe in the Constitution, simply stating you have some liberal views here don't get you banned.
If you go to DU where the "progressives" live and stating you're a conservative will get you 86'd faster than a mosquito at a nudist convention.
Your reception here is a direct result of the open way you approached the forum, and the indication you may not be as liberal as you think.
A word of caution though, liberal talking points are not well received here. Tread lightly.
There are many reformed liberals here, stick around, you'll reform also.
It's easy to disagree with people here and not get banned. I have been doing it since 1998.
Just don't get personal. Attack with facts. Make them prove their claims. Don't let anyone get away with saying something is so, without proving it is so.
It seems to have worked well for me. Heck, I even go toe to toe with the founder of FR and get away with it. :P