No. All the ag2 profiles have been migrated to ag3. Only two differences: the URL became http://armorgames.com/profile/urbanwolf232/ (now it's http://armorgames.com/user/urbanwolf232/) and the about part have been shortened to 1024 bit.
Until AG3 launches though, there are some elements of your AG3 profile which will get overwritten by this version of the web site (aka AG2).
For example, if you change your biography at AG3, then come back to AG2 and change your password or something, we send your entire profile back over to AG3, which will overwrite your AG3 changes.
There are some elements of AG3 which are unaffected by AG2 migration, such as the privacy settings.