There are some positives with having periods. Other than being able to have babies if that is one's wish.
Not that I look forward to having my periods every month, BUT one thing I can appreciate is how it allows me to feel things just that more intense and so pinpoint to some frustrations or vulnerabilities I may have that I hadn't been able to realize before. Because those frustrations or vulnerabilities can be hidden within myself, unconsciously so, since it's easier to say "I'm all right" rather than admit something may be wrong, at least in my case. (I mean, I am the creator of the character Roomie ;))
So yes, periods can work as hints that there are still things to work on, or just things within myself to listen to a little closer. (or it just allows me to be pissed off at things when I usually never let myself dive into it)
And Susan saying she'd like experiencing periods isn't supposed to be a Trans Reality (tm) for all, not every transwoman would feel that way. But I absolutely think Susan would.
--> This is a rerun of the finished webcomic Go Get a Roomie! You can find these two strips in the old archive >here<!