'Is it possible to unparent my reply and its replies into a new thread, maybe titled "I do not like scrolling" or something?'

The node you linked to and example title you suggest have what to do with a perl question? "Would you accept that I do not like scrolling and use the syntax highlighter to keep sane? 8)" isn't a perl question, which section of the site would you suggest posting this to, and how would this be less confusing for others/new users? Wouldn't it just make more sense to leave that sub thread with a reply along the lines "I've posted a new different question here", rather than either just ignoring something until focus on the core issue isn't a problem or relying on others voting and moving things around?