Web Mining: is that bad?

Is web mining such a big problem for the user or is just the ad platforms fear about losing their power?
There has been a lot of noise around Monero and Coinhive lately, or web mining in general, and don’t quite agree with most of what I’m hearing. It all started with The Pirate Bay adding a web mining script to their site, so whenever you’d visit them, your CPU would be used to mine some Monero for them. That was made without any notice to the user, just “stealing” their power.

Hackers are quick to notice exposed Elasticsearch servers

PDF] A Review Paper on Software Engineering Areas Implementing

PDF) Intent Mining for the Good, Bad, and Ugly Use of Social Web

Web mining benefits and negative aspects

REQUEST FOR PROPOSALS: Website Revamp > Appalachian

Cryptojacking Spreads across the Web

WEB MINING: PATTERN DISCOVERY ON THE WORLD WIDE WEB - 2011

Data mining: Definition, techniques, benefits, risks

PDF] Intent Mining for the Good , Bad & Ugly Use of Social Web

Evolutionary Data Mining Data mining, Digital transformation