I consider writing to be a hobby, and I haven't made any money off of anything. I've written 7 stories, the shortest was 20K words and the longest 50K so it's not like these are insanely long novels but they aren't short stories either. They are all posted on another website that is set up to show off your writing and have other people review them and all that. Someone PMs me through said website and says he's an online marketer and he might want to purchase the rights to one of my stories. We talk back and forth and he eventually comes back with an offer of 250 for the first story I had ever written and posted on that website.
Now, I'm not really worried about how much money is a story really worth. I'm not in this for the money at all. But I do worry if somehow I agree to this that there is some aspect of selling your rights that I'm missing that would make me want to just hang on to the story. I don't know how this sort of thing usually works and why someone would want to buy a story for 250... or even what would motivate someone to go look for stories to buy the rights to in the first place.
On a separate note. The fact that he's contacting me through PM sounded shady at first, but since I don't attach my email or real name to any of my stories so if someone that didn't know me wanted to contact me, that's the only way they could do it.