Originally Posted by joecaption
It's been that way for over 70 years without an issue, why is there one now?
I agree wholeheartedly- if there were going to be a problem you'd see it by now. I will add that you shouldn't alter or remove any support there for other things like HVAC or plumbing, It's working fine but if you change anything that could change too.
Lots of things in old houses were built in ways which we don't consider acceptable today, but in most cases they worked well and often still do. Most of the lumber back then was from 'old growth' trees; denser and stronger than the same size stuff today. Most of the tradesmen back then knew how to get the best from it and selected a better piece if needed instead of just grabbing the next board from the stack. Craftsmanship and pride mattered more then than now, and more time was given to do the job well instead of fast.. Not all the old houses were built well, but most of those still remaining were, and that is why I love them.
It ain't broke so it doesn't need fixing, but if you do need to do something there then first study and understand how they did it and why, then do your thing with that in mind so the old work isn't being compromised by the new, but complementing it instead.