"In sufficient quantity you can get tactile switches for similar prices from trusted suppliers."
SHOW ME.
"I can send you some excellent fake voltage regulators"
No one is going to set up and make fake voltage regulators that work but are not reliable.
The set-up to make a regulator is enormous.
Thailand is already over-run with hundreds of millions of surplus LEDs, Displays, regulators, chips and components.
How can something be excellent but FAKE ????
It's no wonder I get 7,000 visitors to my website each day.