I currently use Mixpanel and it's great. So happy with them, I even wear their lovely "I am data driven" t-shirt!
However, I've noticed a few inaccuracies with tracking such as signups per day when comparing to my database.
Can I assume these inaccuracies are due to those users with JS disabled and/or have Adblockers installed?
Have you guys experienced inaccuracies with Mixpanel or any other analytics platforms you use?
Is this simply something we have to live with and isn't really a problem as the sample size is adequate?