I wonder why people just write reviews

I wonder why people just write reviews without getting confirmations that their applications have been approved. Lol, you can’t just praise a company or an immigration simply because you were treated and guided well on your visit to them. That’s what they are supposed to do because, you the applier you are their client and it’s their role to treat you well and guide well coz at the end of the day you will have to pay them. I suggest that we should always write reviews about companys or immigrations when our targets are reached or not. That is business/deal!.