On the pros of fingerprinting: it's practically the only consistent tool to prevent malicious use in certain usecases, such as app hosting and similar bot protection.
Email validation doesn't work. Ip blocking doesn't work. Captcha? Kind of. Fingerprinting? Very efficient.
Its efficient until you get bots that rotate fingerprints with every request. Then you need to move to behavioural metrics to see if they look different to regular users of the site.
Email validation doesn't work. Ip blocking doesn't work. Captcha? Kind of. Fingerprinting? Very efficient.