Instead of subscribing as a reader to a thread, you could become active in a thread and show your side of the medal. Active members in a thread can subscribe to new messages on that thread with one mouse click. Adding your messages will not only help you, but also other readers who may learn from your insights.
In the Google Search News forum (the forum that I spend most of my time reading) the tone and manner in which people tend to "engage" means that it is not necessarily encouraged to discuss things.
Often the "opinions" and "views" of one or two forum leaders are considered to be the only valid discussion and the forum is edited and moderated accordingly - hence why I don't waste my time posting my thoughts (nb. thoughts) and then having to justify having an opinion - and why I have only 25 posts in 8 years.