Orange triangles in forum site list/subscribing to forum topics

Aloha

I have 2 questions.

1. I subscribed to quite a few topics in the forum list. When I look into those topics though, I can see that quite a few threads get missed on my 'favourites' screen. Why is this, and if 'favourites' only offers a selection of posts from the topic that interests you, what is - respectfully - the point of subscribing?

2. What do the orange triangles mean when you look at the forum site list? Does that mean I have subscribed, that there are new threads I haven't seen?

Your help is appreciated

1 - See here for the distinction: https://www.theforumsite.com/forum/topic/What-is-the-quot-My-Favorites-quot-section-/94880
Basically the favorites section is for all threads in a favorite forum, subscribing is for individual threads in any forum

2 - I believe it's supposed to indicate new threads but doesn't work very well. I personally don't pay much attention to it.

AHHHHHHHHHH!!!
Thank you so much.
This works exactly as you said it would.

no problem