Bottom Line Up Front:
Biased absolutely clearly conservative. It's the nature of those who talk Politics vs those who practice politics.
Definitions what does Liberal and conservative mean? Let's skip over the colloquial good and bad, black and white definitions.
Conservative - a person with conservative political views who supports tradition and is often opposed to change
Liberal - someone who looks ahead and not behind, someone who welcomes new ideas without rigid reactions, ...
Why was the Roman senator Cato, and President Reagan both considered conservative yet likely didn't agree on much? Why were Thomas Paine, and President Franklin D Roosevelt considered liberals? It's about where they look for solutions. Left or Liberals when faced with a problem tend to think of new solutions. They look forward not backwards. Right or Conservatives when faced with a problem tend to fall back to solutions which have worked previously. Well known, better understood solutions.
The net effect is conservative ideas tend to be better on average. They are safer and generally understood to be better than the status quo before they're implemented. The draw back is they are also by definition compromises. There would have to have been some reason why those ideals once practiced were previously abandoned. Good and bad.
While liberal ideals tend to be inherently more dangerous. Trying something new is just more prone to fail. Alternatively for systemic problems, (healthcare crisis, global warming, civil rights in the 1960's) conservatives have no historic solution to look back upon, they are prone to favor the status quo rather than take a risk. Most social, scientific progress are inherently liberal ideals, new thinking. While if you show me any society which functions there is conservative hands at work.
The United States was founded by Lefties. Washington, Jefferson, all the founding fathers were Revolutionaries. Revolutionaries are by definition extreme lefties.
Our Historical examples from above. Cato was a Senator of Rome and during the Roman revolution he was strongly in favor of returning to a Republic, that's why he is considered a conservative. Paine was an age of enlightenment thinker who also favored Republics but is considered liberal because in Paine's time republics were a new solution, the old tried and true solution was Monarchies. Their really were no republics in Paine's time, not on the scale of France and the U.S as he was advocating. (ignoring Ragusa, small city state republic in modern day Dubrovnik.)
As a society you really need both. You need liberals because they give you progress. You need conservatives because they are better at keeping things running. Business and things like markets work better with stability. Ideally for a functional society you need both because they are linked.
Now America in general is a country historically blessed by moderation. Our Most conservative presidents and most liberal ones were moderates. They possessed both liberal and conservative traits which is to say they were competent.
Now is this site left or right. The question is only quantifiable if you can categorize every question and answer as novel or historical. Clearly a political science board is historical in nature. New historically unsupported ideals probable exist here but in general being able to site historical examples or recount historically what happened is an exercise which calls one to look back. This site is driven by the past generally speaking. Thus this site is Conservative. clearly.
Most people are not 100% one way or the other. Would make no sense. Most people are a healthy mix and like Washington or Cato are categorized by a handful of decisions. The modern colloquial definition me good you bad is a meaningless façade which masks reason..