I'm wondering if it is considered as good practice to increase the complexity of a question once a good answer has been provided for the original problem. Specifically, assume that in the first place a simplified version of a given problem is presented. In case a satisfactory answer has been provided and the simplified problem is solved, is it possible to edit the original post so as to tackle the actual problem formulation?
Please notice that my situation is not exactly the same as in this question, since I would like to increase the complexity of the same problem, rather than asking an additional question about corollaries of the problem.
EDIT: thank you for your answers. When I say "altering the original question" I mean appending new content, something like "let us now alter the function $f(\cdot)$ so that...". Although I'm trying to solve the problem by myself, I was curious to know what to do when some additional help is needed.