Largely, I think @rfusca has summed it up by saying your casting too wide a net. Asking for general tips based purely around location or time of day seems too broad.
To narrow the questions down, you need to think about what it is you are actually trying to achieve. What is it that’s missing from your knowledge / experience? What have you tried in the past that has caused you issues? If you have no experience at all in a given area then what problems do you envisage based on your knowledge of the environment and similar situations you may have been in?
If you think about these things they will drive out a higher number of more targeted questions. Some of them should be duplicates that will apply in more situations and you can find yourself, because you’ve taken the time to think about the problem. Others may be new questions that can actually be answered well.
So for your examples...
Sunsets / sunrise. You may drive out questions about exposure, flaring, white balance, colours, framing for portraits, framing for landscapes. Each section as you think about it may result in even more, specific questions (How can I compose landscape shots to create a feeling of isolation when shooting during sunrise).
Protests. You could drive out questions about safety, shooting from within a crowd (how to prepare your gear, how to make the crowd feel at ease with your presence), how to get pictures of authorities without getting into trouble, positioning, how to convey different feelings from different framings.
Railways. You could drive out questions about lighting (underground / under cover / glass ceilinged / open stations). Interesting perspectives, how to convey the feeling of the station (targeting a stationary individual with a long exposure with everybody else rushing around for example)...
- Funfair. Again, there could be lighting questions (is it a day / night time shoot)... How to create interesting effects from moving rides / light patterns... again, different aspects of dealing with crowds... etc... etc...
To answer your comment on @rfusca’s post:
How is this a better question?
The question has several good attributes. It links to examples that demonstrate the types of shots the asker is interested in, as well as including an example photo within the post. The first part of the question (
What characteristics make a jump picture impressive) focussed on one aspect (composition to create impact) of a specific type of action shot. This is a fairly tight question, but because impressive is somewhat subjective there is still room for different opinions (which is where the voting comes in from a community perspective and where the accepted answer comes in as it should be whichever matches the questioner’s perspective of impact). So yes, this is a good example of how to ask a tips question because it is asking about one aspect of the picture.
For me, the second part of the question (
How to reach these characteristics when shooting the picture) may be widening the question up too much. It could be interpreted as asking for details (which may be technical, wide aperture, fast/slow shutter, flash...) for possibly diverse compositions. It’s likely that at least some of the ground covered to answer this part of the question well would already be addressed in other questions.
For comparison, I think the equivalent to your original questions would be something like
Are there any tips/factors to keep in mind for taking impressive shots of people. This covers the same ground as above (one answer may be 'Get them to jump and ...') but also would cover completely different pictures like capturing the face of a firefighter as they leave a burning building. Or it could be answered in a totally abstract way (think about the depth of field, point of view, lighting, type of blur effect you want etc).