From that thread:
Since there is a "Watch Board" feature now, this thread is no longer necessary. Please use the following links to achieve what this thread provided:
@Stephen Gornick, if you could put this into the OP and lock this thread that would be appreciated.
dree12,
Thank you for suggesting this. watch_board will automatically add all new threads in that board to my watch list. That is not what I wish to have occur. I only wish to have in my watch list those threads which I've purposely added. I suppose a workaround is to unmark the ones I don't wish to watch, but that would then be a task over and above and introduces watch list clutter which I prefer not to have.
The other options, such as Sort by First Post (oldest first), are inadequate as well. (no notification)
This index does the job that I, and others I presume, wish to have done.
That thread is also not the appropriate place for this discussion.