No style of beer has an ideal serving temperature that is universal. You may like your ris best at 55f. I may like it best at 35f. Or 75f. To each their own.
There are generally accepted serving temperatures for types of beer. In fact many times the brewer will say what the ideal serving temperature is.
Extreme cold or heat dulls taste. You can't pick out subtleties if you are drinking ice cold beer, or burning hot coffee for example.
Now for a regular american lager like Coors or Miller, it is fine to serve it ice cold. Sometimes that is nice and refreshing. Those beers don't have a ton of taste so it's fine. In fact, if they get warm they taste like crap. I have nothing against anyone for enjoying an ice cold adjunct.
Now for stuff like imperial stouts, belgian quads, barleywines have warmer ideal serving temperatures. Sometimes it is even printed on the bottle.
If you enoy your RISs at 35f then I am sorry but you are doing it wrong. There is no way to pick out all of the flavors at that temp. If you like it at 45 and let it slowly warm up to 55 that is fine. And 75f ... lol no-one would enjoy that.
Now sure, you can do whatever you want. If you want to microwave your beer up to 80f then go right ahead. But if you would like to enjoy it, then it makes sense to drink it at the ideal serving temp. We are just trying to help by making suggestions. If someone does not know better and drinks a stout ice cold, they may miss out on what really makes it great, they won't pick out all of the flavors present. We aren't just trying to be a bunch of beer snobs trying to mock others.