I have been in Bitcointalk forum for a year and a half(+/-) now. And one thing I find very disappointing that you won't get any notifications on who replied you on your posts/replies.
Like other social media, for example, they show you the notification for who and where the reply is made.
As shown on the screenshot, there's an option called "Show new replies to your posts."
But this only shows the topics in which the reply was made, and not where and who made that reply.
Also, if you are having a conversation with someone like discussing something, and that's a hot topic in which people are blasting their comments. You might not find the reply and conversation you were having. It is possible, but you may have to search a lot to find that.
Also, there's an option in which you can turn on notification, but that sends all the other replies made on the topic which are not related to your conversations.
So it's good to have a separate field where we can receive those notifications, which are specified to only replies, and we can access it through that notification link.
If this already exist in forum then I would like someone to point me out please.
Also share your thought which needs improvements in forum and what should be necessary to add.
And if not, then I think it should be a really good option to have on forum.