A Maclaurin series is a Taylor series expanded at zero. The expansion ex = Σ xn/n! used here is built around the point x = 0 and taken at x = 1, which yields e = Σ 1/n!. The expansion point is not arbitrary, it is zero — so this is a Maclaurin series, and

Creator 0x5A44…7bAA·0.00% creator tax