TCell32: Or use 1 tool.
This is the scenario you're endorsing.
Someone wants a game so they post on reddit etc.
They get 3 responses. Great a 2v2 can be played.
Player 1 is using one of the options you listed.
Player 2 is using the other.
Player 3 is using the option someone else suggested in my multiplayer post.
Player4 is using game ranger.
So no game will happen.
As one of the last guys on the planet, who is still hosting community events for the different Star Trek games. This scenario never happened even once in the last 10 years. Every time I made an event announcement people were just happy that they had the possibility to play the game and didn't care what tool we were using.
The reason why I didn't recommend gameranger from the start is simple, it just isn't the best option to play games and I only use it as a last resort. It has some major issues:
1. It only supports a limited amount of games and most of the time only in the vanilla version. If a modder changed something on the exe gameranger will most likely not accept it.
2. It is more or less forgotten by the developer. The last update was in 2017 and the forum is dead.
3. A certain percentage of user can't get it to work, even with ports open.
4. Annoying advertising, which is a problem for content creators.
An other reasons apart from gameranger is that the gog version now comes with an IPX wrapper. Which not only offers another possibility to get a connection, but also may bring a better multiplayer experience. We need to test it more, but the first tests gave us some nice results.
I also have to mention again your behaviour. I really don't want to offend you, but I think it is really not nice that you come here and demand which software the community should use. It is great that you want to help the community, I really like your idea that we should explain the tools like radmin or zerotier better. But before you enforce your opinion, you should talk with the community and get all sides of the story.