I have posted before on issues to keep in mind when considering filing an anonymous opposition against a European patent.
Recent case law confirms that, even if you are happy to reveal your identity after the event, it probably will not help you.
This particular case shows that, if the straw person has no legitimate interest in accelerating proceedings, the fact that the real protagonist has considerable legitimate interest makes no difference.
Request for accelerated proceedings The patent was causing uncertainty and hampering investment and development decisions by interested parties (first request for acceleration presented with the statement of grounds of appeal). The real party of interest behind the opponent Strawman Limited was CSL Limited, which was developing a recombinant Factor VII- albumin fusion protein and therefore needed certainty to continue its development activities in view of the large sums involved. Any decision of CSL Limited as a potential licensee under the patent depended on the outcome of the appeal proceedings, and thus the request for accelerated proceedings should be granted as falling within one of the examples given in the Notice from the Vice-President DG3 of 17 March 2008 (OJ EPO 2008, 220; second request for acceleration of the appeal proceedings).