Why say you went to a certain festival to two avid festival goers, they’re clearly going to ask about the festival and who they saw
Likewise saying you can’t put a book away is dumb - someone at some point is going to ask about the books she’s read, not even to catch ‘Joyce’ out but because it’s the first thing on her profile and so someone would generally just be interested...
They went about this in a very bad way and just played the stereotypical old woman whilst making themselves very vulnerable as they don’t share any interests or similarities to her on the profile meaning they can’t even discuss Joyce’s own interests. They’ll be found out straight away