This Auto Hotkey script provides a keystroke (Control+Shift+N) to click the "Skip" button on the donation nag screen that appears when MT Power Kit first loads.
To use the script, simply run MTPDK skip start screen.exe, then switch back to Reaper's FX window and hit Control+Shift+N.
The script will automatically quit after a successful click.
I've verified that it works in Reaper. Not sure about support for other DAWs.
IMPORTANT NOTE:
Do not delete any of the files in the folder, they're all required for the script to work properly.
FYI, here's the list of files that should be present:
exit_after_task.txt
key1.txt
key2.txt
key3.txt
MTPDK skip start screen.exe
reference.bmp

I don't know who wrote the script. If you do, please let me know via any of the Reaper accessibility groups. I'd like to send them an effusive note of thanks and to make sure they're being credited wherever this thing is being shared.

Hope it's useful!

Scott

(Last updated 25th July, 2020)