The 1.18 patch brings forth more radical changes than most people are probably expecting. Every launcher/loader, such as Chaos, adv, mca64, wlauncher, will stop working entirely. The UGL antihack will be incompatible as well, as will every hack that has ever been made for SC. Furthermore, the replay format is changing - which will break the entire reporting system, so even uploading .rep files will not work as it does now.
As a temporary solution, I will begin a system where users upload games, and then they are manually reviewed by staff, in a manner as convenient and efficient as possible, in a queue. Every replay will be processed within 24 hours, and then will appear on your profile and be available for downloading as normal. If people volunteer to help with this, replays would probably be processed much faster.
I will also be working on bringing the replay parsing system up to date with 1.18, but at this time I don't know if the format is known by anyone.