I have never met Hyrena, but I do not consider him a troll. In fact think he is the opposite. He is not trying to start anything or accuse anyone. He is trying to learn as much as he can and make sure he is fishing legally and safely. He may have a hard time expressing himself clearly but I have never once thought there was malice in his posts.
As for the LC, yes, there are ways to fish it legally without going onto the reserve, but in all honesty not much point right now. If you are bent on fishing the Little Campbell ask the Band, it is much easier. That being said, if it were me I would go a bit further and fish the point between Crescent and Whiterock. Probably won't catch salmon, but catch sole, flounder, perch, and I personally enjoy catching dogs. They put up a good fight on a light rod.
If someone really wants to learn to fish these small urban streams go out and join the local volunteer groups and hatcheries such as the Semiahmoo Fish and Game Hatchery that supports the Little Campbell. There are quite a few of them around with at least one close to your neighbourhood, and all are looking for volunteers. Often their members have intimate knowledge of these systems that will give you a chance at success while giving back. These systems are not like the C/V or even the Fraser. In my personal experience they are some of the most challenging waters to fish in BC. I learned to fish on these local rivers over 20 years ago and still strike out most days.