It’s really easy to be an asshole as a creator. The simplest way is to only come around, only talk to or interact with people when you have something to sell.
When that happens, people hate to see you coming. Some may be interested in what you’re slinging, but many more will see it for what it is: usery. People don’t like to feel used, and if you only come around and talk when you have something to sell, or something on the horizon to promote, then a lot of people will either tune you out or run the other way.
No one ever said comics was easy. Between real life (whatever that entails for you) and creating comics themselves, who has time to do the slow promotion thing of actually interacting with people before trying to sell them on something?
Make the time. It will easily be the best time spent, because you’re interacting with your peers and contemporaries, forging relationships, and getting people interested in your stuff organically.
There are a couple of creators whom I’m “friends” with on Facebook. First, let me preface by saying that I’m hardly ever on Facebook. I could easily get lost in there, and lose hours at a time looking at stupid cat videos. Now, a couple of these “friends” only ever come around and get my attention when they have a project they want to get out to the world. One even went so far as to send me a chat with a canned message. I immediately unfriended them.
I will not be used like that. Not for your project that only serves you. If you’ve got a project that’s helping others, then I’m very happy to help you to help them. Otherwise, you have to treat me with at least a modicum of respect, and that’s best done by not being an asshole and coming around only when you need something.
Be the slow self-promoter. You’ll get much further ahead that way.