Anyone ever seen those t-shirts that say “4.0 Killed Gary”? They’re tasteless and insensitive, and kind of silly when you think about it. I mean, what is it with pen-and-paper roleplayers? Let me be clear here: I most certainly fall into this category. I have thousands of dollars of roleplaying books on one of the shelves in my apartment. There’s almost always a book within arm’s reach. I have books from countless systems, editions, companies, settings, games. I have two editions of Exalted, one of Engel, a small collection of Sword and Sorcery, some assorted book’s with Monte Cook on the cover (for the sole reason of his name), a massive collection of 3.5 books, the 4.0 core set, the Forgotten Realms and Neverwinter books for 3.5 and 4.0, a smattering of AD&D books (it was before my time, sadly, and I do not understand THAC0), a first edition Dungeons and Dragons boxed set, a monster manual that was copywritten in 1973, Vampire: The Requiem, Vampire: The Masquerade, the old World of Darkness books, the new World of Darkness books, Iron Kingdoms, Inquisitor, Ravenloft, Gurps, and several notebooks with systems of my own devising.
In short, I have no problems with many multiple pen-and-paper systems.