Time is not a big issue for stabalizer. Capacity is measured in the number of rolls that have been treated and yep there is a limit. If you have not been replenishing I would suggest a couple extra minutes in that step but I'd do it.
Similarly bleach and fix (when used and kept separately, I'm not talking about blix here) can be reused indefinitely with proper replenishment.
The tricks with all three are simply replenishing to maintain the proper balance of active ingrediants and keeping the solutions clean.
Developers can also be reused and replenished but time will take a toll on it, it needs very regular use, replenishment, and protection from oxygen.