Is there a way that a new member (it's they who are the issue) could receive a welcome mail saying "Welcome... if you have joined us because you have received a Penalty Fare or been reported for a wrong ticket please click here ....
This would lead to the pinned "please read" post, at the end of which would be "please click here to confirm that you have read this" and then to the New Thread button.
I have no idea whether this is possible, if it isn't ignore me... and apologies too if any of this duplicates what others have said.
Variation: perhaps PF and reported should be two separate routes?
There could be a link from "reported" to more technical stuff that's in our Ticketing guide, but keep the main sequence as simple as possible - what happens next, what won't happen (prison etc), what outcomes are likely.... plus what we need to know to help.