For what it's worth, I think that this bug should be split into two or even three bugs:
1. Advanced search
2. Advanced reporting
3. Saved reports
Advanced search is the ability to find tasks based on having a tag or *not* having a particular tag etc. Advanced reporting is controlling how those tasks are displayed (e.g. which columns are displayed). Saved reports is taking a search & report and giving it a name and the ability to access it quickly.
For bonus points, the "Quick add task" feature would still work in such a view, although that's quite hard to manage.
For what it's worth, I think that this bug should be split into two or even three bugs:
1. Advanced search
2. Advanced reporting
3. Saved reports
Advanced search is the ability to find tasks based on having a tag or *not* having a particular tag etc. Advanced reporting is controlling how those tasks are displayed (e.g. which columns are displayed). Saved reports is taking a search & report and giving it a name and the ability to access it quickly.
For bonus points, the "Quick add task" feature would still work in such a view, although that's quite hard to manage.