Dear Christoph,
I totally share your concern. This is a very important issue. We as the moderators (mainly me and Trevor) are continually looking out for spam and plain advertising and delete it as soon as we spot it.
Occasionally, the advertising is done in a borderline fashion. After all, some companies may have something interesting to sell and if it is presented in a neutral way, then I think it can be OK for a company to tell us about their product on this forum. After all, we do want the private sector to be engaging with us. Prime example is Emmanuel Morin from Ecodomeo or Wolfgang Berger from Berger Biotechnik; they engage with us in interesting and in-depth postings, and the fact that they also sell composting toilets is then interesting and nothing wrong with it at all.
The postings from Jim Medall from ITGreenergy are in my opinion borderline or mostly likely even too far in the advertising direction. I have e-mailed him twice already to tell him to take off his sales hat and just to tell us more about the process and about his actual experiences with the process. He has promised to do so! (at least he responded, others just ignore such a warning message)
It is interesting though that several members of the forum have asked him for more information so there does seem to be an interest there. I do not like it if he then writes "if you want to know more, please e-mail me". That defeats the purpose of this open forum. The information should normally be shared and discussed here in the open.
I would say, let's give him another chance and see how things develop. But in general I agree with you, we do not want plain advertising here - as clearly stated in the forum rules (see tab at the top of each page if anyone is wondering about the forum rules:
forum.susana.org/forum/rules).
Jim, if you read this, please abide by the rules and speak to us like a colleague would and not like someone who wants to sell something and says any other process is worthless. Thanks a lot! (double check in the rules if you are not so sure)
Regards,
Elisabeth