I'm cheap-slow-and risk taking-
and it is a Campy Post.
I would clean it up and use it.
Now the thought of a 27.2 suppository being suddenly inserted at 15mph-should give me pause.
But it is Campy post -and I'm cheap-and old Campy is magical for folks who had bikes 60's-70's.(FULL CAMPY-big deal back then)
I bet most folks on this forum-especially C&V types-would use it on a beater.They would be incapable of tossing a Campy post.
I just couldn't toss it or not use it-.
If it was Sun Tour or Shimano-sure I might dump it(but I'm cheap,so maybe not)
If it broke-your seat would just suddenly drop-but your butt would still have the seat under it for a moment until is side slipped and your butt-crotch hit the top tube seat tube junction.

Who here has actually crashed or been injured from seat tube breaking? A stem or HB or frame fork breaking would be a lot more dangerous-
and folks still ride chinese CF frames-despite their having an iffy reputation.