I don't think that question is a shopping recommendation or off topic. He is not asking if he should buy a phone or a particular plan. He's asking if a phone can reasonably be used without using more than 150 MB of data per month and to provide context he has mentioned that this is the criteria that he's using to decide whether or not to buy a particular phone/data plan.
He could have phrased it like this:
Is it possible for a phone to be used regularly and not go over 150 MB
of data in a month
I realize that I could just turn the
phone off and it wouldn't use any data
but is it possible to use a phone on a
regular basis and stay under 150 MB
per month or is the fact that the
phone is on and doing background syncs
going to use more than that much data?
... at it's core this question is asking the same thing as the one I mentioned above. It clearly wouldn't be a shopping recommendation.
Here's another way it could have been phrased:
Should I get a 150 MB per month or and unlimited data plan?
I'm looking for a phone to make phone
calls, text and light internet use.
Should I get the Unlimiated data or
would I be fine getting the metered
This is a shopping recommendation. The questions are very similar but I think that at it's core this question is distinctly different. The second one is asking the community to make decision for him and tell him what to purchase. The question in question here was not asking us to make a decision for him, it was asking whether a certain theorized use was practical and/or possible because he felt that it was an important criteria in making his own decision.
While I think that phrasing is important, I think we can use a little discretion to determine what the heart of the question is and not require that question askers contort their questions to follow a strict phrasing criteria, simply to avoid using words that are related to off-topic questions.
- Asking if you should buy something or which something you should buy = Shopping Recommendation = Off Topic = Kill it
- Asking about a particular feature, function... that you are going to use as criteria in your purchasing decision = OK