This weekend, I started pruning names in the Public Tree to include only individuals relating to my family ancestors, and their descendant families. These are the individuals that relate directly to my children. So this weekend I removed the ancestors of my sister's husband's family, retaining only his parents in the database. Six years ago I researched and added his ancestors as I created a Family History binder wedding present for my nephew. No additional research has been performed since then.
So why remove this data, and why now? Last year I moved from a Windows based desktop genealogy program, to a Macintosh one. The Mac program had many advantages, and did not require me to run windows on my Mac. But the migration totally messed up the source citations. To make matters worse, the GEDCOM exports from the Mac program to update this website did not have the same flexibility and functionality that my previous Windows based program had.
With some regret, I decided to migrate back to the Windows based program. I will be working to correct all of the events and source citations. Since the pruned data had not changed, it can always be added again later from a pre-2013 merge version of the data. The focus this year is to resolve all Event and Citation issues in data that has been merged from various sources. The issues are significant, and only affect the login-required TNG database which is limited to family members.