Is it poor form to switch accepted answers?
Once I accept an answer to my question, I don't think it's very polite to change the acceptance to another answer. Can I do something to recognize the other good answers besides just voting them up?
If I maintain a answer with a low score (because it's the first that I gave), what I can lose?
Should I change the answer to a locally written answer (cf. a link to another website) that is less complicated?
I'm asking about all this to make my Math SE question the best contribution it can be.
Will I be penalized for any of this? How does all this work?