I’ve stopped using the Forecast tag now that I’m using Planned Dates.
For me, the Forecast tag was a way to put something in today’s Forecast without giving it a false due date. Now that we have planned dates, I can use those to add something to today’s Forecast. Or tomorrow’s. Or next week’s. I just find planned dates to be more expressive than a single tag.
If you miss having a quick keyboard shortcut to assign an item to today, you might be interested in this plug-in (which you can assign to any key you choose):
