The title rings a bell, I have read a "Bad Science" by Ben Goldacre, and I recommend TS to read it too, it shows you how to do a fair trial, how to distinguish fake science e.g. homeopathy with real science.

I am not a scientist, but a student that has interest in science, do correct me if I'm wrong.

2. A good theory must be supported by observation of experiment that can be reproducible. That means if another scientists do this experiment again, they should get the same result. About the issue of cherry picking the results, you should read "Bad Science".

3. The definition of Pseudoscience as cited in Wikipedia Pseudoscience does not follow the scientific method, hence it is not accepted in the scientific community. It's not that scientist are not open minded about pseudoscience, but pseudoscience has to prove its claim by giving valid evidences, and having its claim tested via experiment. I would recommend you to read about history of science, scientific discoveries are not as black and white as you think, they are time where ridiculous ideas are treated as scientific truth, but it soon get dispelled by the scientific community. e.g. spontaneous generation, the belief that living things can arise from inanimate things, but soon it got dispelled by Louis Pasteur.

4. I have not yet read evidence about big bang theory and abiogenesis, I think there are so much that you must learn before giving a judgement about it. There are problems in these models as well. I think in the mean time of finding evidence for these theories, other valid hypothesis supported by evidence and experiment should be respected too. Maybe Big bang theory will turn out to be wrong, we won't know at the moment.



References:
1. Wikipedia. Pseudoscience. http://en.wikipedia.org/wiki/Pseudoscience (accessed 24/1/2013).