I'm aware of watch topic, which covers a full thread.
What I'm asking is if there's a way that we can save post or pin or keep post some weeks can attend to them easily in the future.
There are replies that I have come across that were informative with things I'd like to go back to since the mY brain isn't trustworthy.
And I wouldn't want to start browsing through the full thread example like WO for the response.

Not just on gaining knowledge ( realised that is easy to miss knowledge in technical if not properly practiced, experienced or refreshed) but also when you plan on meriting such post but you lack at that moment.
Experience such when I newly started and unfortunately I can't even locate most of them or even the board they were from. Can't even recall what they were

Is such existing? Or if not would it cost much to implement?

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I have tried Note to save some but it's a scatter house there with lots of things. So never helped.