Minor suggestion for a Message Board feature

Could we get an option to flag posts for ourselves that we want to keep up on? I’m not saying it should come with receiving notifications for those threads, since QM is opposed to that idea, but sometimes I have conversations in the MB I want to keep up on and it would be nice to have those highlighted or be able to filter by them even so I don’t have to scroll through a bunch of posts

edit: and before someone says “why not just leave the tabs open”, for whatever reason on my phone and computer, JetPunk uses up a ton of memory. i’m also not a big fan of having a bunch of open tabs at once.