Lucky, I don't know the legals but I've seen it enough with plenty of companies that I don't think there is a penalty or much of one. And for that matter wasn't the NT-10K to extend it to 4/15 to begin with, not 5/15?
Anyway, all IMO. I'm still green and still long, and don't believe it's a scam.
NO ... only one NT can be filed per period. After a few successive NT's filed the SEC can remove them as a reporting company. Failure to comply with the filing period of an NT can also get them removed as a reporting company. jmo