For years, the presence of mountain lions here in Maine has been a passionately debated topic. Some are sure they’ve seen the big cats — also known as cougars, pumas and catamounts. Others point to official accounts that claim the last mountain lion in Maine was killed in 1938, and dismiss reports to the contrary as bunk. One thing’s for certain: There are a lot of Bangor Daily News readers who are convinced that they’ve crossed paths with the elusive beasts. The results of last week’s poll question. When Laurie Nichols Kelly shared her story of an encounter with a big cat — she couldn’t see the tail, and wasn’t sure what it was — we asked readers what they thought, and asked them to share their own tales.