not move but additional display, so when a user submits a review which has a site review url link (extra field), a compiled list of review urls can be listed on product page, so even if user's review is on page 10 of show product page, their site review url is listed on 1st page. Just makes finding each site review url link easier to view and access if it's all on first page.
would also be userful for vendor/retailer info if you had an extra review field for place of purchase of the product. When user submits where they purchased product from, it can be bulleted list and accessed and viewed from 1st page on show product page (a where to buy list as such) rather than having visitors having to flick through several pages of review posts.
guess there's other uses for this, i.e. pulling username list from product reviews submitted for display as a bullet list/drop down list in a sidebar/frame which displays only on that productid's show product page. The list could show usernames of all those that have posted a review for productid and in brackets the number of reviews the username has posted to date - probably caching these lists would be a good idea. This could be a way of encouraging users to post more reviews if they are showcased on each product review page.
of course this would only be useful if there was accompanying admin end features to manage these custom bullet lists for approving/reject/banning/pruning and also setting limits as to how many extra review field entries are displayed on each bullet list etc
edit: hmm more i think about the more ideas come to mind, i just added vB
plugin for vbstopforumspam api database to reduce comment spammers on forums so guess if reviewpost is paired with vbstopforumspam would be protected and reduce comment spam urls being posted ?