The users are not getting mobbed and the issue is not with the user but with the question.
This question in my opinion should be edited and possibly closed because it is asking for good coverage, which is generally a loaded question but if it has been already upvoted and answered IMHO there already isn't a point of closing it.
This question is looking for options of cell phone coverage in Berlin, which is likely on topic and doesn't solicit any opinions.
This one is wrong on great many levels including asking for cheapest option, which in the US can be many and second recommendations which is non-constructive here as per FAQ. If one bothered looking at the questions asked and simply asked if the options mentioned in questions like this and asked if the options mentioned and those in the related question are available in California it would have been left alone.