I've visited this bar several times over the last two years and have had the same experience:
You are not allowed to enjoy conversations with your friends above a whisper level.
Every. Single. Time. I've been in there with various friends we've been told to quite down or we'd be asked to leave.
We're not in there hooting and hollering or raising our voices, we're conversing in normal tones.
Mind you, me and my two friends were half of the people in the bar. Also I'd like to point out that we were not gambling so we were paying FULL PRICE for our drinks.
Also worth noting: don't use your speaker phone at any level or you will be warned. Don't use any sort of offense I've language or you will be warned. This includes talking about medical terms properly being used.
My friends and I like other locations in town and this one is central to all of us. So, we have decided we will go spend our money in the bar at the casino behind this place and not worry about offending anyone when we pepper our conversations with words like "crap" instead of sh*t (true story- crap was offense), or sharing a story of how HPV didn't exist when we were kids.