Yeah more likely a bug.

I remember reading a post several months ago about people who actually got life time EE...and those guys would rent a significant amount of days per year for....10-20+ years consistently. And then I think they got something in the mail saying they were lifetime EE members...if anyone is actually a lifetime member, would be interesting to hear from them.

But yeah 400 days in 2-3 years is likely not nearly enough for lifetime EE consideration....(FWIW, I'll have about 700+ days at the end of next year and I'm not expecting any lifetime benefits anytime soon....)