You shouldn't take it as an affront. I know I'd be glad if a tradition I had started got so liked that others wanted to actively participate. Have you checked out how many Adventure Game Scenes were posted during the months when you were gone and we tried to keep it up?
It'd be awkward if you left just because someone else posted their Scene. Then again, if your own threads were the only reason you were visiting the forum... (which is kinda sad to hear
)