Here at Thrust Industries Inc. we value transparency*, so before showing our scientifically derived answers we'd like to share our data driven method:

Using "Crawler Bot X9" [patent pending] we've harvested user data on the length of username, registered date, stated country of origin, number of games owned, time spent in game, names of games owned, date of release of owned games, average individual session play time, and genre of games owned.

Using said data, we use the output of a multiple linear regression to determine the "Personal Information Reference Number" value of any query. This number is then input into our "Tsar-Thrust" divination table to determine what can be determined from the store profile.

Now, on to the answers:

Only a few games, but lots of game time:
When the user was a child they turned over a rock to find an insect that they did not recognize. To this day, they have never determined what that insect was.

Racks up 100h per week in game time
This user has briefly dated another GOG user over 10 years ago. Neither user has recognized the other... yet.

Lots of games, has game time, but only a couple of hours per week
This user was severely affected by Munchausen syndrome as a child. Through several years of hard work and introspection, they've manged to beat the disease.

Average number of games, Game time zero
This user worked for their Uncle's business as a child. They still have a nagging feeling that this broke the child labour laws of their country at the time.

One game, thousands of hours
This user has been called "sport" on several occasions throughout their lifetime. They have always found it mildly annoying.

Plays a lot of games like Downfall, The Cat Lady, etc.
This user has never eaten a toblerone bar.

Always plays the newest games
This user was once stabbed in a market in Calcutta. They consider themselves cooler than all the people who have been stabbed there after the city was renamed Kolkata.

Plays a lot of oldies
This user has walked past a dead bird on the street within the last 48 hours. They've yet to tell anyone of the sighting.

Rapidly switches games, rarely finished any
This user was offered a job selling flowers. They turned it down.

Avoids war games
This user has been banned from a forum by a mod who gave them the following reason:
Seriously, enough with the peanut allergy jokes! It wasn't funny the first time and it sure as hell wasn't funny the hundredth... you know what, GTFO.

*Thrust Industries Inc. would like to express it's regret that, at this time, we cannot share the details of our "Tsar-Thrust" divination table, as it requires the permission of our partner (one Michael Tsarion) and he refuses to acknowledge it's existence. We are however pleased to offer the R code for our statistical methods to those who express an interest.