One reason I can see why people post other builds on here is because there are a lot of people on here (like me) who wanna keep up with a build (like your Cuda build) but don't have an account on the other sites so won't get notifications when you post an update.
I use the same log in name and password on car every site and just stay logged in...it's quite easy to keep up with and get the notifications and keep the integrity of the appropriate website. Just hit the easy button.