Why can I still post photos in my discussion?

I think the script might not be functioning properly yet. I mean, there might be some minor bug in the mylot script and it just let you upload it. I myself can't verify that coz i am already more than 500 last month. Good for you though, mayb the script let you upload picture but din't pay you in the earning? Check it out and let us know :)

Well it depends on mylot people if they will change back or not, but reaching 500 discussions is not very difficult, take part in discussions and you will reach there and then you would be able to post photographs.

I can also post pictures i do not know why

Personally I think this new policy is intended to increase the gap between long time members and newcomers in order to discourage new members. I think mylot might be discovering they have too many people on their site and are starting to put policies in to discourage new membership. If a mylot admin can officially tell us in writing, in public, without any spin or rhetoric (which you can read a mile away since politicians have given us plenty of practice), that this is not the reason for these discriminating new policies, please feel free to do so.