Wrong forum for this type of question.

But No. Its also not nearly as big of a deal as your making it out to be. No one cares you’re topping off your mulvad subscription using xmr. Just use cash or buy crypto on a CEX/atm/local and swap to xmr. Especially on an old, less power efficient computer. You need to use Ryzen CPU, folks usually buy minisforum pcs for this.

just ran the numbers, if you get one of these newer amd ryzen pc’s you actually might be able break even if your electric is less than 12 cents USD / kwh

use xmrrig.com for benchmark for cpus use miniforum pcs or build your own use https://www.coinwarz.com/mining/monero/calculator use monerica for swap services

Also, if your this concerned with your privacy you should run your own node. See monero.fail