Charlie is Charlie Gordon.The following will spoil the ending of Flowers for Algernon. Think about it. At the end of Flowers for Algernon, Charlie moved out of New York. Since this was an attempt to move somewhere where people didn't know him, he may have changed his last name to Kelly. He then got a job at Paddy's Pub (also cleaning), and he kills rats because they remind him of what he can remember of Algernon. He didn't remember his parents, so he probably met up with his "mother", who thinks Charlie is her real son because she's, well, crazy. Since Charlie's memory was decreasing, everything said about his past in the show was probably just made up by him, and everybody in the show plays along out of pity. The most clear evidence of this theory are Charlie's impossibly bad spelling, not to mention the fact that he's already borderline retarded.
The finale will be exceedingly dark and humorless and will be about the group realizing that Dennis is a serial killer
The Gang's flanderization is a result of their deteriorating mental health.
Green Man is Charlie's "safe" persona created to cope with being molested
Dennis is a reincarnation of Patrick Bateman.
The finale will have the whole gang die.
The Waitress' name is Nicki Potnick.
Mac isn't really gay. He's just confused and the writers are just messing with us
The gang will eventually kill Cricket
The reason Mac's become more and more homophobic is because......he finds it harder and harder to deny who he truly is to himself and those around, but is afraid to come out. Think about it. In the first couple of seasons, Mac came off as straight. Then Mac becomes Ambiguously Gay with hints of homophobia. Though it wasn't to the extent it is now. Now he's so homophobic that he says AIDs is God's punishment for gay sex and not even fooling anyone into thinking he's straight. He could be so homophobic yet less ambiguous because he wants to avoid being gay or outed as gay, but he can't hide it anymore. So he just resorts to prejudice and calls it a day.