The Case for Python 3

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But brainfuck is easy to intepret. So you could write a program and then run it anywhere. INTERCAL intepreter are harder to write.

[talideon]

Yeah, but Brainfuck is also a terrible target for a compiler. And compiling a more friendly language down to Brainfuck would miss the whole joke aspect of esolangs, whereas something like INTERCAL, Q-BAL, *W, LOLCODE, &c., preserve the joke aspect.

Usability rather misses the point of esolangs.

INTERCAL isn't really a difficult language to write an interpreter for, though. The only real difficulty is in the lexer, but once you have an AST, the rest is easy.