Many people to great getting started with a worm composting container, then the new wears off and the bin/worms get neglected. Sometimes it is not neglect, it is little mistakes. But either way it can lead to dead worms which are stinky AND a waste of your money.
And when you have succeeded at the above for 90 days then harvest your bin for castings and do a check to see if you need to split bins or share worms.