I'm a lawyer.
I deal with government officials on behalf of clients.
I will give a different context of it.
Many people "do actually" commit tax fraud. It's just real.
Then you have people who don't do "compliance" and government officials see this as potential cash cow.
Then you have third category of "clients". These people just are unlucky. The officer "wants" to get a certain sum of money as bribes so they are indiscriminate in who they target. Any fully compliant client "has to" pay to avoid "further complications" and they quietly pay because they don't want hassles.
This website was built by end users who see "oh why do I have to pay a bribe" when most likely they have committed tax fraud and just want to be quiet about it.
Example.
People calling fake deductions in their income tax returns or giving fake donations and claiming deductions. People often say "oh I didn't know" but it'd actually tax fraud so why not face full music of the law if you do it?