1. it's easy to "get" and participate in drama.
Sometimes to participate in a community you need to know and understand many things, whether it's stuff related to the topic, or to the culture of the place, or whatever. With drama, it doesn't matter what your background is, you can easily understand it. "This guy argued with that guy and said this thing" and so on. So drama is something you can get/share/discuss immediately, even if you don't know all the details.
2. it's probably human nature in part to be interested in drama
Gossip has existed since forever. At the end of the day people seem to care about people and their relationships with other people. That's also possibly part of the reason why movies are interesting to us.
I suppose this answers your second doubt: people want attention, so they manufacture drama because they know it draws attention.
3. Conflicts happen sometimes. Reason 1 and 2 inflate the whole thing and make it a public event>Maybe I'm just boring
If anything, I'd say that it's the people who are too much into drama who have the risk of forgetting everything else which would make them pretty boring.
If there's something I can ask of you it's to be understanding of people who are a bit into drama. Not attention whores though. Fuck 'em