The questions which I like you may not like. Taste differ from person to person.
I like all the questions that give knowledge. Some questions do not suitable for my expertise. I leave them. If I can answer in general way I answer them. Or if I find it is interesting I search and post the suitable answers even if it is not my specialization.
Individuality varies from person to person but If one think always in positive way then he will be able to accept and face all challenges of life weather it is pressure / pleasure or question / answer.
First of all, we are all as RG members from different universities and different cultures so each question will has a flavor of his questioner, that means, almost questions will attract me with my respect to all parameters that you are talking about.
One of the most advantages of questioning and answering in RG platform is getting more colleagues and friends like you Dr. Vahid Abdolvahab, thank you so much for your kindness.
Which parameters of a question, encourage the researchers to answer that question? and why?
From question's perspective:
Clarity of the question - clear / simple questions encourage more answers whereas multi-barreled questions confused answerers.
General or specific question - general questions tend to attract more answers
Whether the question is from mainstream or unique disciplines - question from unique discipline / technical area might not attract answerer even though s/he has the knowledge as the readership is low & potential to upvote also might be less.
From answerer perspective:
Have the knowledge
Have the experience
Is the subject matter expert in specific area
Similar question(s) have been answered before in RG - reuse previous answer(s) for the similar question
Potential to upvote - some answerers might assess whether their answer will be upvoted or not before answering any question.
Example main part of part of natural and human science has a lot of misleading parts (physics, geology, chemistry, biology, cosmology, history, philosophy,…), if an independent researcher asks a good question which suggests strongly contradiction in mainstream science, will not get a response from academician’s scientists. They afraid of losing their position… I have a lot of examples here at RG:
Others case the questions has a connection to the practical science, technology, and the good response has a value cannot be estimated… In actual World, nobody wants to pay for intellectual products… it is better if is free ( is stolen)… Many persons have experience who has innovated something… Example: Tesla