My reasons for support of term limits:

I belong to some professional associations that have a term limit of X amount of terms followed by Y time off before being able to run again at Z time. It's designed to have talented people who are familiar w/ the org serve & use their wisdom to better the organization, but not end up w/ 'career' board members or 'cartels' (cartel isn't the right word, but I think you know what I mean) & also provide a break to those who serve so that they don't burn out. And it's worked quite well.

And as posted by koko in the other thread & which I agree with:

By: BoardSource
Many boards find that setting term limits can be beneficial.

Advantages of a term limit policy:

•The board has the possibility of working with active community members who can devote only a few years to board service.
•Bringing diversity onto the board is easier.
•The board has a built-in balance of continuity and turnover.
•Passive, ineffective, or troublesome board members can be more easily rotated off.
•Board members experience a better rotation of committee assignments.
•A regular infusion of fresh ideas and new perspectives is brought onto the board.
•The board gains a regular awareness and pays attention to the changing group dynamics.
•Limits present an opportunity for the board and the retiring board member to reassess a mutual willingness to continue working together with the possibility of enlarging the circle of committed supporters by keeping retired board members involved.

Disadvantages of term limits:
The downside to having terms limits can mean:
•the loss of expertise and organizational memory;
•the board spends more time dedicated to recruitment and orientation; and
•additional efforts are needed to keep the group cohesive.

Disadvantages of not having term limits
Boards without a term limit policy can experience:
•stagnation if no change occurs among the board members;
•perpetual concentration of power within a small group;
•intimidation of the occasional new member;
•tiredness, boredom, and loss of commitment by the board; and
•loss of connection to the constituency due to a change in demographics or environmental factors"

In addition I haven't seen one person post in either of the two threads that exist on this topic why taking a single year off every 2 terms is a bad thing & will harm FT.

Cheers.