Warning above a certain maximum diner list size

[TimHeiszwolf]

I recently discovered that Scala apparently has a policy (see "Reserving cooking slots in the kitchen") that you can't make a dininglist with a maximum size of above 30 people. If you want to do that you need to request it with Scala. I have opinions about this.

Regardless it might be good to either make it impossible or to give a warning if you make a list larger than 30 people.

[mhvis]

I think it's better to not add restrictions until they are actually needed.

In this case, I guess this policy is added to prevent it becoming too crowded in the kitchen. If this actually happens, Scala can refer to this policy and act upon it, for instance by asking us to add this restriction to the app. But we don't have to add this restriction prematurely.