Yhea all in all its a Common occurance.
If you want to make sure its safe then
1 Dont download any new games (aka just appeared not many comments etc)
2See if the comments are Varied (everbody praising the game could be using bots meanwhile questions problems etc hint at it being "Real"
3 If you are still unsure wait a little bit and/or check whatever support he asks for
In a case like this with around 800€ pledged per month its unlikely to just be a scam