Well I think the problem that most people have is not knowing WHEN to expect a decision.
For example, UCI is on a rolling basis. That's fine. But it would be nice if they could say "every Wednesday at around such and such time new decisions will be posted".
Then we could all relax a little and check only on Wednesdays.
I check my UCI account all the time and stay up until 12 because I simply have NO idea which day they will pick to post a new batch. THIS, imho, is what is bothering people.
It's not really rolling basis vs all in one day. It is set date vs vague timeline.