Could someone of the Moderators / Admins please decide how to merge 2 Brainstorms?

Is this a good Idea?
Should we keep up several ones for the same issue?
Could we add a redicretion link from the one (closed) to the other (still open) Brainstorm?
Or should we delete the second Brainstorm instead of a redirection?

Here is the first: Brainstorm 1
Here is the second: Brainstorm 2

And here a Discussion about how to merge: LINK