But GDPR says even if data us anonymized but can be tied to a natural person in “reasonable” manner it is still illegal. then it gives some vage examples of wha

But GDPR says even if data us anonymized but can be tied to a natural person in “reasonable” manner it is still illegal. then it gives some vage examples of what might be considered reasonable... so a lawyer could still make a case that tracking data is illegal. you also have to explain to your user in clear and plain language using visualization where possible on how data collected is processed.