1. First off, who do you share your opinions with? Is this something you only discuss on the internet or is it something that you discuss outside of the internet as well? If so, in what situations have you discussed your opinions?
I have talked with my immediate family and wife about these things, mostly regarding extra-terrestrials and government coverups. My wife is not that interested and frankly my family doesn't take much of an interest either. It's more of a casual conversation piece that might get into a deeper debate. A few of the people I work with are also interested in the topic and we converse about it to varying degrees. I tend to not use it as an ice breaker or even too openly around people who work in other areas (read: not my friends). This isn't about ridicule, it's simply that a majority of these people are 'been everywhere seen everything' kind of folks. The subject of extra-terrestrials doesn’t come up too much outside of places like Alien Hub. While I’m here I actually don’t prefer the topics of aliens as much as some of the others.
2. How have people reacted to you sharing your opinions (on the internet or otherwise), and how do you think the "typical" person would react to your opinions?
I test the water with people before I talk about such topics. Essentially if they react 'negatively' I won't talk about it any further, if they react 'positively' I will go on. Honestly I've found a wide majority of people from a wide spectrum of education, social and political outlooks, and even religious preferences have some level of interest and knowledge on the subject.
I believe the typical person would be moderately interested in hearing about the subject provided it was relevant to the situation. A typical person wouldn't want to be overwhelmed with information however as a typical person would only have a moderate interest at best. I've found that people believe in the existence of intelligent life on other planets and of those people at least half would say that intelligent life has visited our planet. Bottom-line here, I've found that a typical person 'believes in aliens' but either doesn't believe in deep or unpopular issues or simply doesn't care.
I have noticed that a vast majority of the people that don't believe in the existence of extra-terrestrials are the 'been everywhere' people I mentioned earlier. They have an outlook that believing in such a common thing is a stigma for the 'weak', people 'too stupid to realize' what is going on. In the cases of conspiracy theorists, they simply look at them as mentally handicapped or drug addicts. Something you might find of interest is that I can't say for certain this is what they truly believe or simply what they advocate.
3. Why do you think people have reacted (or would react) this way? In other words, what do you think is the cause of how people tend to react to opinions that involve extra-terrestrials?
I'm sure most people react neutrally to the subject of extra-terrestrials because they are used to them. We've been bombarded with the subject of aliens, ufo's, even government coverups for decades. We're all familiar with the people who got into a panic over "War of the Worlds". No one was worried when "Signs" came out a few years back though. Furthermore I’ve noticed that many people are essentially saying “There has to be something behind this.” People are curious but they just don’t really care as much as others.