I like old “new movies”: if I haven’t seen it yet, then it’s new to me.
Obviously, a Q that you respond to and which hasn’t been seen by others – that we know of – in several years, and where the OP may have even left the site – well, that’s a different matter.
But even in the case of “old” questions, most of us, I think (and strictly speaking only for myself, but assuming that most other jellies operate along similar lines) don’t “Stop Following” threads that we were once participating in (as a rule; sometimes we have to manually stop following because the thread is driving us insane, or “more insane”). So we’ll still get a notification that there’s activity on some thread, and follow the link to read it. If you post new thoughts, well worded and thought out, then you’ll get GAs, and your wisdom will be added to the train of thought for jellies to see centuries from now. Personally, I quite enjoy when an old thread is resurrected with a cogent comment or two. That keeps me on my toes AND in my seat, if I can be permitted to mix those metaphors in that anti-athletic way.
That’s why I try to be careful with my spelling and grammar. Well, one of the reasons, anyway.