I got curious and I was bored so I decided to check the Bottom 100 list. No surprise - 28 of the 100 were Budweiser products and 18 were Miller-Coors products [but only 4 were Coors]. What I did find surprising is that 9 of the 100 beers are brewed at a brewery in LaCross, WI for 3 different companies and one of the companies only sells a total of 6 beers of which 4 are on the list. These are local or regional beers at best. So, I believe I have found an answer. If this brewery can stay in business and the company that has 4 of their 6 beers on the Bottom 100 list can stay in business, either there are alot of loyal customers or there are alot of people who either don't know what a good beer is or don't care. Ordering a beer for some people is determined by habit. They just don't want to know or like to stick to the tried and true.
#51 Heineken Light - must be just me, i love this stuff. I dont drink it often but once in a while I will get a draught keg of it and it is delicious.