Scientific research, when conducted properly, transparently, and without bias, should never be labeled controversial. It might sometimes be redundant, ineffective, or even useless, but never controversial. Science exists to deliver answers; the topic itself should be irrelevant.
Discussion
But if you do that, how you can be sure you get the results of study you want? Aha?
Check mate!
I know this was meant as a joke, but you are right. Even the most rigorous and honest scientists carry biases. If you are researching a cancer cure, of course you want it to work. (Notice how I'm ignoring politics, ideology, corruption, etc.) That is exactly why we need more validation and verification studies—it is not a waste of time or resources.
Absolutely.
That's why's so important to not 'ignore before it even started/without reading studies' even if they look 'bullshit' or whatever.
Look how many past fringe theories are nowadays totally valid...