installed for bulk unsubscribe but doesn't work

edit1: it seems youtube only allows to unsub to 10 channels at a time. But the UI allows to select more than 10. The UI should prevent to select more than 10 or loop over unsubscribe calls 10 at a time

There's a tiny bug on the Subscriptions page where the state of selected labels are NOT remembered if it starts with a "+". I named some labels with a preceding + symbol but I think something goes wrong with certain characters. I still think the extension is amazing. I'm just too lazy to rename my labels, lol.

Most of the useful features are behind a paywall.

Why isn't this feature already implemented by default in YouTube? It's 2023 !

I paid for the subscription just to shot videos on popularity to save me time, however in many instances it won't sort video on views, when I set it to popularity. The arrangement even with 100 or 200 videos filter it will show me old videos with high view but hide some. I have to go to channel page and individually check for videos which defeat the whole purpose of paying for subscription.


Update:
I appreciate your timely response and clarifying the details of the cause. It's alright I will just cancel my following subscription. but I would like to request a notification if in future you figure out a way to solve this issue I will gladly take the membership again. :)

This extension is very laggy and clunky to use. It's such a great feature that mildly pisses you off due to how slow it is to load anything. Not to mention the random days where I have to refresh youtube multiple times with multiple tricks to make the extension features actually show up. It's in dire need of heavy optimization work. Great idea limited by the execution.