That's a tough one Guiseppe...understandably many hesitate to post reports in most situations because they do not want to see 2-3 or even 10-15 anglers nearby the next time they go to an area they like to fish. Even when a post does not reveal any specific details as to where, inevitably it does lead to internet anglers trying to to find those spots through more internet research etc...
Then what you might find is that those anglers who did not put in the serious footwork to find better fishing over the years, but found it by deduction from an internet report, is those internet anglers might choose to post about their newfound shangri-la without the respect for spots that good old fashioned hard work over many years inspires. Obviously that would negate any efforts to protect spots in the first place.
As Sage already mentioned, many of the more experienced anglers share information via private messaging, and I think this is a nice option. Others post more obscure reports spot wise, and concentrate on method, result and little misdirection to try and keep it safe.
It is unfortunate, but also a part of life...not just a part of the internet angling community. More often than not a good percentage of people out there are just looking for shortcuts and haven't the respect for the resource and the sport itself.
For those of us, who enjoy the peace and tranquility of some fisheries, and enjoy fishing with those who share the same respect for the sport, suddenly finding a bunch of guys fishing at at local spot who obviously don't carry that respect can be very disheartening to say the least.
It's a hard lesson to learn, I learned it once upon a time, and I am sure others have as well...
As for the "heckling" comment that was made, in certain cases such reactions are more based on anglers perceiving that someones ethics or respect for the sport itself are poor at best. In that specific case, I think it has more to do with closing the lines of communication which would understandably lose the respect of a lot of guys. That would just enhance the poor impression that was made in the first place.
It's tough, I used to post reports regularly, but issues like time, life getting in the way, and of course the big one, being careful about divulging too much information or piquing too many peoples curiosity tend to get in the way. That's not to say reports won't come in the future, they will, just that when and how will be much more selective.
I guess it does all come back to the trust factor doesn't it...?
:cheers:
rib