Seriously?? We were on the Dream Concierge and NO ONE told us we could have beer during the day!!- Where were the fridges? They seemed to have some with Milk under the buffet area is it there???
You are correct. The lounge does not offer all you can drink beers throughout the day in the lounge.
"Marc D" may have helped himself. Often that is challenging ironically, even in the lounge. The hosts prefer/frown upon you pilfering their fridges of alcohol outside the designated hours.

Now during the limited alcoholic operations "may" be a different scenario. lol.
There is no perk of any alcoholic beverage throughout the day in the lounge.
Only during specifically posted times.
Of course that doesn't mean you couldn't "purchase" alcoholic beverages outside the designated times if desired.
Agreed "
raven." Some fridges have milk, soda, water, and whatnot, accessible during lounge hours of 7am - 10pm. When the lounge is crowded, busy, etc, hosts may be swarmed, occupied, etc. and after they know you, it's not unheard of guests accessing the lower fridges, after a wink to the host, to expedite a lame request/desire for a non alcoholic beverage of almost any type not displayed.
IOW, one would normally get a visually confirmation, as subtle as it may be, prior to accessing their fridges. Unless of course prior permission was granted. Which could have happened easily for the duration of the sailing for most pax at anytime aboard.
This is normal for regular non alcoholic beverages for all pax in the lounge BTW.
Although I heard it is common courtesy to ask before accessing anyone's fridge, is it not?
But accessing alcohol outside of the preset free flow limited times is definitely outlawed.
BTW these fridges and cabinets containing alcohol are locked normally outside the free flow hours. Good luck gaining access outside the preset flow times.
Now that doesn't mean certain pax may have been granted access, such as those in the cat R's.
IMO those pax in the R's deserve everything they can grab regardless of any lounge hours or locked cabinets.
Perhaps
"Marc D" was one of those pax. ? ? ?
or not ...
Just an opinion.