@Vanitas Just my opinions, feel free to disregard.
If you switch from D to R, it looks like momentum for the R side. It will be used to say 'look at all of these people that knew we were doing the right thing and switched to R'.
It won't let you vote in the D primaries, and there might be a candidate that you wish to choose over another and that would kind of deprive you of that choice.
Those are really the only two arguments I can come up with. If you were Ind, it kinda won't hurt anything?
@sirgeefive @Vanitas I would agree, but it depends on your area, mostly for us, the Dems all rep the same platform and issues, so that candidate doesn't matter, but we can flip that every primary election.