The questionnaire should be sent to those only, who have shown their interest. This is helpful in providing context for your reply but its easily overdone and can be irritating, specially if you quote the whole of the last message then the next person quotes the whole of your message including the whole of the one you were quoting - you can see how this might escalate. Quoting is more necessary on a very busy list, where there may be several threads running and people have difficulty keeping track of the discussion, but even then please use it selectively. However please don't make your signature block much longer than this and please don't add irrelevant material, especially advertising copy, clever formatting etc. The discussion list has a European and International focus and the subscribers come from many countries world wide.
Many subscribers have English as a second or even third language.
In some cases they have excellent and valuable contributions to make but they need time to read what has been written and compose their response. In contrast, those who are very fluent in English find it easy to read the message and dash off a reply, so that on some occasions we find that the discussion of a topic moves forward at a great pace - two people may exchange views in the list more than once in a single day. For someone who wants to make a considered response this makes it difficult to contribute, since the discussion has moved on. It also means that the practical limit of discussion capacity in an email based list is taken up by only a very few people. We believe this will enhance the overall value of the list to you as well as to others, since we will make space for useful insights from those whose English is slower.