Actually, wamp2 is production compatible if you install version that has ssl which is one of feature for security; however, you still need to do a lot of other things to secure your server from spammer's spy bots (if you have mail server or clients' email for forums, so on), from hacker's mysql injection, db manipulations, so on to steal your or your client sensitive info, so on
On the other hand, if you have server just to host forums, blogs, photo galleries, so on, you don't have to worry much about losing sensitive info, except your clients' emails... ;-)
I have 3 servers running wamp since older version for more than a year and so far so good.. ;-)
If I'm missing anything, feel free to add your opinions
Have fun,
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