I like to play supports in and of themselves as champions.What I don't like is the attitude most players have toward supports.
Many people think supports are less important that other roles. They aren't. Period. And it's very unwise to be abusive to your support as they have a very strong say in who lives and who dies in a clutch.
Many feel like every bush on the map should be warded and at all times and support be damned if anyone else on the team should need to buy a ward ever. Everyone benefits from a well-warded map. Everyone. If you go back to base and have some gold left over after making your buys, do yourself and everyone else a favor and get a ward. Sightstones have charges and limits on how many wards can be up at any given time, and your support cannot be with your team in fights and dropping wards all over at the same time.
Many people do not credit a portion of an ADC's success (or the team in general's) to the support, but they sure will credit the support with ADC failure. If a carry is fed in bot lane and takes the tower, they seem to forget who helped get them there and gloat in all chat about how "pro" they were. If they sit in the path of Cait's Peacemaker and Nid's spears and then wonder why you can't keep them up, they will complain.
Many people think supports exist solely to babysit the ADC, and while this is a large part of the job, it is not the only part. Supports support the ENTIRE team, and they may not "carry" on their own, but Leona's initating power and Lulu's ability to wreck a teamfight with her disruptive ult and polymorphs sure do make winning engages easier.
I guess the bottom line is, too many players think damage output and their K/D scores are the only important aspects of the game, and as such, supports, being low-damage champs who generally do not pick up kills, are not appreciated. There also seems to be the attitude that playing supports requires less "skill" than other champs, and that's a riot to me given that ADCs are essentially auto-attacks.
Luckily, I don't take this game too seriously and I don't care about how "pro" someone is or is not. I play largely for amusement and time-killing, not because I want to show non-entities on the internet who I've never seen before and will never see again what a total bad-ass I am. So, I play support. It's what I appear to be best at, even though it can't be measured in DPS or the vaunted K/D score.