That is true but I have that option off because those kind of things to always fill up ones inbox to quickly. If people want to use it though go ahead. I use software to monitor any forum topic I want even if I am not a registered member on that specific forum.
I have trouble wanting to keep a topic I am subscribed to lets say from my software for instant notifications for longer than even 6 months to 1 year. The amount of notifications, popups, or sounds start to get annoying. Almost have one go off every 30 minutes or so. Depends on the day and time. Can't see how anyone would even care about a topic they posted or subscribed to, however it may be, for over 5 years. That is like 20 years tech time. I know it is not always about tech but even nontech stuff 5 years is a long time. The answer or opinion to the topic may not even matter anymore or have any importance anymore.