Perhaps, you just stopped lingqing new words?
‘LingQs of the day’ e-mails mainly contain lingqs that you saved recently + lingqs that need to be reviewed (LingQ is using some kind of srs for choosing these words).
Basically, members who previously unsubscribed from the Newsletter will not receive LingQs of the Day emails either. We have made it possible now to only unsubscribe to some emails, but for members who previously have done so we have to manually go in and resubscribe them.
If anyone else has the same problem, please let us know!