I always test all games and features offered by the brands I represent or promote, you need to make sure you can see the product from the user’s eyes so you have an answer for all questions they might have.
Also as an affiliate you cannot recommend a product/brand that you haven’t try; your website’s reputation can be ruined if you recommend a bad company or feature, this is why you need to go the extra mile and do the whole process from depositing, requesting a bonus, playing and cashing out. There are a lot of companies offering HUGE bonuses but they will never pay your guys… remember that you want the players to be happy so they keep depositing and that include them winning from time to time.
You are testing the games or doing your job so there is no reason to get hooked to them lol.