The good samaritan in me says I shouldn't care. But sometimes I answer someone's question. Then they proceede to follow up over and over with comments and then continue into chat. "But what about..." "Can you explain this too..." Since I used to be a teacher I get sucked in, answering all of their questions and often (too often) they never even upvote, let alone accept my original answer.
This behavior has let me to avoid answering those with low scores, just because I think it may be that they've come here just to get help on the one problem. Then they'll be gone with out a thank you (upvote).
Is there something else I can do about this, rather than just grow jaded from the process?