Right. All of the posters who are mentioning signs and how ambiguous they are, if you go back to the beginning and read the original post i did not mention anywhere about signs. The whole point of my rant was the fact that there is a safety barrier at the end of the platform concerned and the particular gentleman chose, in front of my eyes, to climb over the said barrier to take either his picture or video. So just to recap, i did not mention anything about signs it is about a 4ft high metal tube safety barrier and how a small minority of photographers seem to think that it was put there just to look pretty. So can we get back to the subject at hand which is the small minority of people in the rail photograpy/ enthusiast community who think that safety barriers are not there for safety.
The station concerned is Solihull by the way....
I'm not sure what you're expecting people to come out with. It's highly unlikely you're going to get anyone coming out in disagreement with your original post, and we know that there will be certain individuals who choose not to follow rules and procedures. This is by no means limited to railway enthusiasts or the railway. Like it or not, part of working in the operational side of the railway industry is that you're going to experience passengers and/or individuals who don't behave in the way that you or I would desire. Sometimes it might be boarding a train whilst the doors are closing, or smoking on the train, or trespassing. All these things and more can be frustrating, however it's part of the job and likewise part of the job is to respond calmly and professionally to problematic situations - it's one reason why train staff are well paid. (I should add that I'm not suggesting you didn't, by the way).
Returning to the subject in hand, the point about signage as I see it is that the basically poor, inconsistent, ambiguous and in some cases unfit for purpose signage found in some/many areas of the railway creates the impression that the railway industry does not really care about this form of trespass. So we can't be surprised if some individuals exploit this. Contrast with London Underground where the boundaries are generally very clearly laid out, and in consequence there don't tend to be major issues when special trains run (no doubt there will be exceptions).
In the absence of being familiar with the location in question, am I correct that the barrier you describe partitions off a disused section of platform? If not, perhaps you could explain what the purpose of the barrier is, as it sounds like an unusual arrangement.