The headline isn't really misleading but it implies a slightly different problem from what seems to be real crux of this (or so they say):<p><i>"As you can see, the number of daytrippers -- is steep," says Bettini. This is crucial information, because these "hit-and-run" tourists are usually charged with causing the most damage to the struggling city. They tend to come in from other parts of Italy -- often from beach resorts on a bad weather day -- and rarely spend money, bringing their own food and eating illicit picnics on bridges and on waterfronts. But since they don't stay overnight, they cannot be counted by the authorities -- until now.</i><p>I don't understand exactly why not staying overnight means they can't be counted, and another quote does mention too many visitors in specific areas, but the problem is apparently bored domestic travelers who can't go to the beach, not over-tourism in general. Maybe a messaging based approach would work better than this rather intrusive tracking system but who knows, I'm not Italian. I've been to Venice though, it's really nice, if you get the opportunity you should take it (respectfully), even if you have to agree to be tracked.<p>Also - not sure if commenters are aware of this, but I'm pretty sure every hotel in Venice already keeps passports and IDs on file and reports who is there every day to the local authorities.