On some SE sites, having a tag wiki be a copy/paste from Wikipedia article is frowned upon (e.g. on SciFi&Fantasy it's a semi-official policy, acknowledged by moderators, that such tag wiki edits are to be rejected and fixed). This is NOT for IP reasons, e.g. this is against the rules even if the fact of copy/pasting from Wiki is openly attributed to satisfy copyright.
Should we have the same policy here?
The problem with such policy is that for some tags - especially technical terms from political science - the Wiki summary just might be the clearest, most accurate wording possible. Rejecting it seems merely inviting inferior wording for no good reason.
Just to be clear, the question is about 100% prohibiting - as a policy - Wiki paragraph quoting in lieu of writing your own text.
It has nothing to do with encouraging writing your own wording, especially in cases where the tag does not 100% match the Wiki term, or where Wiki wording isn't ideal.
It has nothing to do with discouraging copy/pasting Wiki paragraphs that aren't a good fit for questions that the tag covers.