I think that's because no one has ever hit it. From my understanding of CA it seems unlikely that they would have imposed a limit because they never expected people to be using big scripts. But equally there may be an extent by which a big monitor may not work right.
There's no easy way to do the trait thing - however if you want to use that in many different monitors then you may want to have a separate monitor to use the existence to set a counter. You can then use an if I_CompareCounter line within your monitors.
Bookmarks