The forum is a members' only facility. Non-DP members cannot post, although some sections are viewable to visitors.
You are required to have adisplay-namethat readily identifies you as a DP member - and this must be your FULL name. If you know you share a name with another member then use a middle name, too, for clarity. 'Amusing' nicknames are not allowed in the interests of those trying to organise voluntreers/ events / trips / training sessions via these pages. You can change your display name any time by logging-in and going to 'Profile' on the red menu under the banner at the top of the page, then to 'Edit Profile'.
Same rules apply to new club members applying to join the forum - your FULL NAME is required, anything else will be rejected.