Hi,
Some times, We have a problem/issue that we solve with some research. After some time, we get again the same problem/issue and we do not know where we found the past solution.
To get around this problem, we can set forum posts with a star. This operation is identical to a favorites mechanism.
For example, in StackOverflow we have this:
And, In my profile I can see all list:
It's something like this that we need :)