Any question answered...

Hello,
Thread of my stem was fucked up.
I drilled it.
Used a threaded rivet.
Et voila.

My gut feeling is that this should be OK, but still I'd like to know what you think:
Do you think there is enough "meat" where I drilled the stem?
Being a fairly soft metal, should I worry using the threaded rivet?
Am I going to die?

No idea. I have spare stems knocking around you can have if they suit. What do you need?