First of all, a parent who goes to a table with children and:
- cleans the table
- wipes down the chairs
- wipes the kids' hands with cleansing wipes
- gets condiments, napkins and straws, and
- feeds a younger child who will not be eating the CS food
is not "saving" the table. That parent is "using" the table in every way that Disney intends, unless and until they feel the need to implement a rule prohibiting such conduct (which is a rare occurrence).
It was mentioned earlier that the system works best if everyone is doing the same thing. Well, there are two options. Do the above, or, wait around in long lines with your kids clogging up the pathways and don't begin to hunt for a table until you have your food. But if the system really does work best if everyone does the same thing, wouldn't the problem be solved if everyone did what is described above? It isn't "wrong", "against the rules" or "inconsiderate" if Disney specifically allows it. And it is efficient if everyone does it. (Or so say those who believe that the system works best when everyone is doing the same thing. Personally, I have not tested the theory.)
In any event, I think that people need to divorce themselves from thinking that a parent who is preparing the family to eat is "saving a table". We should reserve that term, (and our collective scorn) for people who really are camping out, doing nothing, waiting for 20 minutes at table while others with food are truly at a loss for somewhere to sit. In reality, I don't think this happens all that often.
And it is a truly hard-hearted person who thinks that a mom should go into the Baby Center to feed one child while the other children wait elsewhere, unaccompanied. Not every family that goes to WDW has two adults to supervise the children,
and separating the family is the absoulte worst suggestion I have ever heard.