I can relate…
Despite having pushed myself at times, i’ve never had it in me to make a Discord account to join that area of the DLN community. It’s just a personal thing I can’t get over and at times I do feel like i’m missing out on some wonderful Linux conversation and comradery.
I understand why DLN is using it though and it’s because the community overwhelming decided it’s what they wanted. In the early days i’d constantly be on the DLN Mumble along with Michael and a few others attempting to build it out but it never caught on and people were just all getting on Discord, even when DL was advertising the Mumble. It turned into a ghost town. For better or worse DLN takes a democratized approach to platforms so everything is provided and everyone is free to choose where they want to congregate.
I also made a curiosity poll but 19 votes isn’t exactly a scientific data set. 
Aside from the community choice, Discord is also a vastly superior platform that FOSS just doesn’t have a good answer to right now despite a few up and comers. I think DLN also needs to be where the people are, especially the ones on the Linux fence so they can bring more people in. I think of it more like a funnel than a wall, just a funnel I can’t get on top of for the moment.
I totally respect the other side of the argument though and have made a lot of them myself. The outreach capability just feels paramount to me.