[QUOTE=jimi...;2916042]

You probably meant to write: "Good grammar and spelling ARE important, but AS IN any other area, extreme perfectionism is not healthy".

The way you phrased it, perfectionism is being compared with any other area. That can't be what you intended. You probably intended to say that perfectionism in any area, be it grammar/spelling or cleaning the house or - continue the list - is not healthy, in your opinion.