Is using PCB in a radio circuit a problem?

I am making this FM bug: . I decided that I would use this instructable as my first PCB creation. However, I read that the copper creates small capacitors and would ruin the circuit. Would this be a problem on PCB?

iceng5 years ago
It would not create any more parasitic capacitance then the hard wiring
method of construction does and it works fine as the single sided PCB
made in the same layout will work fine as well...

No, not at these frequencies. By the microwave bands, engineers have to use some extremely special (read: expensive) to design circuitry.