Some thoughts, with the time spent on internet and advent of fibre for tv etc, interest for dishes goes way down. Exceptions are 'off the grid' locations (but they get only the simple oneoff dish for national tv, while waiting for fibre) and expatriates wanting their home country tv, f.ex. in Norway lots of workers from Poland etc, one can always spot which house they live in by looking at the dish\lnb setup.
As for hobby\enthusiasts, it will continue but compared to before lots less imo, as young people have no interest\no idea about it so no recruits lining up. Have tried to introduce sat to friends who got excellent location for dishes + money to buy anything needed, showing them freesat etc, they find it interesting and impressive, would be nice to have etc etc, bu zero interest to actually do something.
& an example, a Norwegian sat forum that was very active in it's heydays, look at the posting dates now...
Satellitt
About the forum, am sometimes (quite often actually) finding it irritating to navigate, the overkill amount of boards in a quite muddy structural layout (imo). Often am not posting due to having to dig too much \ way too many clicks time trying to find the intended\best place\board. Apart from this, have been, and still is, and excellent and immensely helpful place for knowledge, fun & news.