I don't even know if my message is reached to Codeforces coordinator correctly. If there is a spreadsheet or document(Google spreadsheet might be the good choice.) to show current Codeforces Round Proposal queue status, people can check if their message is arrived correctly and estimate their email's response time. I hope they will make it someday.
Added 1: It seems GlebsHP is offline for almost 2 months and I sent the proposal email to him. Are he still one of the contributors? If not which coordinator should I resend my proposal email?