The way they are resolved is people were asked to email the bonus issues in.  Support then reviewed the claims.  They awarded bonuses to valid claims.  They gave detailed explanations to people who were incorrectly claiming they were owed a bonus.  

Are all the bonus issues resolved?  No and they will like persist for a very long time as some people have still yet to submit their first email about a missing bonus.  

Example: Someone reads this post today.  They say hey I wonder if I am owed a bonus still?  I should look into that as I haven't done so yet.  They send an email and low and behold they are owed a bonus.  Sonm issues that bonus.  This could go on for years.  Other coins have has distribution issues that they had to correct that people waited over a year to finally ask for their coins.  

The only way you can truly stop all the bonus issues is by putting a deadline date to submit inquires.  I don't believe that is planned.