Might say more about the people who post such things than about Georgians themselves. Georgians are proud people and don't take lightly to disrespectful/rude tourists visiting who think they own the place. Looking at the first Tripadvisor topic about it, it's a dude complaining he got bad service in restaurants etc while visiting with 32 (!!) people. Maybe he has some genuine complaints, who knows, although there could be another side of the coin there which he conveniently left out. Eg, many groups of Turkish/Arab males visit Georgia looking for prostitutes/alcohol in places like Batumi - something which is not particularly liked by some of the locals who for years were used to more mundane forms of tourism by families from all over the former USSR.

I anyway find Tripadvisor a particularly bad source for such things given the huge amount of unreliable reviews/posts, many of people with just 1-5 posts to their name - another sign that you might have to take such things with a pinch of salt.

Georgians are wonderful, hospitable people. If you find yourself lucky enough to acquaint a few of them and get invited to their homes for a meal/feast you are in for a real treat! Learning a few words of Georgian will often break the ice (gamarjoba/madloba for hello/thanks for example). Russian is certainly useful too (everyone speaks it) and might be easier to grasp for many. Service standards and tourist infrastructure are improving, although in the provinces you might still encounter a bit of the old "Soviet" mentality and cold stares. That doesn't mean unfriendliness, it's just the way how it is in many countries in the region (and it's anyway the outside, on the inside - such people are often warm/friendly).

As for the police being scammers/unhelpful I don't believe it either. Since former president Saakashvili sacked the entire police force and replaced the old corrupt officers with Soviet mentality with new people, it hugely improved. Even old police stations were razed to the ground and replaced by glass buildings to signal transparency and openness. I'm not saying it's perfect, but it's certainly not what some people on Tripadvisor make of it.

The only Tripadvisor complaint which I would say is partially true is that Georgian men can be loud/aggressive when drunk. Rowdy bars, especially in the provinces, are therefore best to be avoided for the unacquainted/faint of heart. That said, I don't see how that is actually any different from some US watering holes