In the past, I have voted on many or most of the comments on my own post... However, you are correct that it does drain voting power significantly. I only did it as a way to say thank you... But now I'm trailing @robinhoodwhale's posts, and I want to reserve my voting power for those posts and authors.
But the bottom line is voting is your personal choice and you shouldn't be shamed for voting or not voting however you decide is appropriate.
Yeah, I agree that with trailing the RHW posts we have to be much more careful with our voting power.