Good theory, let's have a go at refining it.
The nightmares you described are the classic stress related/recent experience comebacks that your subconcious is trying to cope with. Given prolonged exposure in real life to these stresses you will no doubt have reoccuring nightmares (not necessarily bad nightmares, just awkward/annoying ones).
E.g. a 'fave' of mine is the, "Oh no I'm late again" dream that was the result of a lifestyle geared towards leaving everything to the last minute and generally being in a mad rush to get somewhere (typically school) on time.
Now, the question is, would prolonged exposure to _non-stressful_ activites also dictate your dreams? One could 'yes' in the case of new found loves and I'm sure the romantics here will fondly recall their dreams following tentative times.
However, I'm not so convinced that reading this forum will manifest in one's dreams as such. Maybe it'll take a concentrated effort to associate
reading this forum to happy/tentative times in order to develop an appropriate reality check trigger.
Either way, reading this forum is no bad thing
Best of luck,