watched a few lobbies from friends and almost everyone in silver/gold does this. you have 30 gold at 2-5, you roll it all, hit nothing and now you have 0 interest for the rest of the game.
interest is 1 gold per 10 gold you hold, up to 5. thats free gold every round. getting to 50 and sitting there is worth way more than a random 2 star at stage 2 unless youre about to die or going for a specific reroll comp.
win streak or loss streak, both are fine. the worst thing is going 50/50 with no econ