Say, I ask a question. I add details a few days later. Will my question remain in the bottom pile of the feed or be brought to the top of the search list? Do people use this as a method to bump their answers when it receives very less attention? How are such activities caught? Does the community manually have to check or are software systems set in place to prevent such malpractices?
Editing a question would likely bump it up the active questions list. That said, this shouldn't be use simply as a way to bump up a question over time. Edits should improve your question substantially so no single charecter fixes, but if you're adding more relevant details, or simply showing your own work/attempts as part of helping others help you find a solution, its fine.