Yes, the only rules are no child pornography, beastiality, and nothing relating to hate (Terrorism, Racism, etc).
All images within the size limit are uploaded. To avoid losing uploads to 'Server Errors' you have to create an album and upload directly to that. The way the servers are set up is so scuffed so 'errors' happen on larger uploads.
Feel free to drop and email (Contact) with any other questions you have and we will get back to you.