People saying they would love to give themselves superpowers because it is their dream are selfish, humans as a species have limitations that aren't meant to be broke, otherwise, it would be chaos. Just think, if people could give themselves superpowers, they wouldn't be super, they'd be freaks of nature. It is not ethical to give yourself superpowers, if it happened to you accidentally, that's not your fault but if it's for your own selfish gain, yes, it's unethical.
At first I thought "no" but then I had to rethink that. If you are able to grant yourself superpowers, depending on the power, it may or may not be an ethical issue. For instance if you grant yourself telepathy or remote viewing then you are clearly breaking privacy while if you grant yourself the power to heal others on touch but refuse to heal people you don't like or happen to be prejudice against that too is an ethical issue that effects less what you do and more the state of affairs/being.
This is an excellent question.
No matter how much control you think you have over yourself, you will most likely justify a reason to abuse your powers. There is a reason we are mortal. We are mortal so that we can deal with the cards we are dealt in life and play the best hand we can before our bodies release life. Enjoy your self, and learn to love your lack of power. In addition, who is to say you don't have super powers already? Everyone has a unique ability or talent. Find yours.
If you think that super powers would make your life- easier, cheaper, more enjoyable- then go right ahead! After all, if you could fly or get strong or make lightning or disappear or run fast or stretch or have rock or flame arms then you would have a better chance of survival in nature and in the everyday world.
Would having a superpower make you happier then you currently are? Then why not give yourself some if you have the chance?
It's not like having superpowers would negatively affect anyone else if you had them (Assuming you use them for good, or even just for yourself). So yeah, It's moral.
Having a superhuman ability is my biggest fantasy and has been for many years, so hypothetically if I were given an opportunity I probably would take it. But there is a major ethical dilemma that comes to mind; why is it I should have it instead of somebody else? On the other hand, it seems to me that as long as I will not be corrupted, it might be safe.
Not all people that have superpowers would selfish and evil. A lot of those people we be good, using their powers to help others. Yes, some would also be bad, maybe even more than their are good, but good people usually end up having more allies than the others. This would result in the "good side" usually winning.
Skills and objects are amoral. They can be used for either good or bad. Simply because one dude turns himself into slug, doesn't mean that he is either moral or immoral. If, you were to kill or use people in getting that power (as demonstrated in many movies, books, and video games), then yes it would be wrong.
Like things that aren't superpowers whether it's ethical or not depends on how you use it. If you give yourself superpowers and use them to take over the world that would be an extreme example of unethical use of superpowers. If you use them in a racist, homophobic, ... Manner then that's also unethical. But it's a priori the case that a person will do that with superpowers any more than they would automatically do so with other things.
Like many, I would like superpowers myself. It is probably the next step in our evolution. After all, we may one day be flame retardant as the fellow in the picture above is.
Giving yourself superpowers is simply giving yourself superpowers. It is how you use those powers when ethics comes into play.