I agree with Rhomal.
Security is the concern of the site administrator.
Site usability for your users is the primary concern.
This could be for intranets, behind registration only, etc. a million uses where security is of no consequence whatsoever.
Allow for options, make it usable, make it powerful.
for the wiki wiwimod module, it has options for all the editors to be used, "at your own risk" which is fantastic.