I created a donor advised fund at the end of 2017. Looked at my assets and basically said, I'll put away 4-5 years worth of charitable donations.

1) With the tax changes going down, the benefit this year would be greater than any future year

2) with the changes increasing the standard deduction and limiting the SALT deduction, even if I would itemize in the future, it be less valuable.

i.e. it's just for billionaires (or even millionaires)