if you're feeling left out because you're not in the discord server, an easy solution is to just join the server. that's not sarcastic, either. i put off getting a plurk for the longest time because i didn't like it, and i still don't, but i'm happier checking it every now and then and feeling included at my games than i am getting upset at being left out because too much is happening on plurk. i can't change how other players communicate, only how i choose to engage with it.

you don't have to be there 24/7. you can search the mod account's posts every now and then and check when someone pings you and that's it. a few people have said they have most or all of the channels muted and only hop in when they feel like it.

using the OOC comm would be the most inclusive solution, but realistically the "please use the OOC comm instead of AIM/plurk/discord" debate has been ongoing for 10+ years now and that ship has sailed. even when mods try to enforce posting everything to the OOC comm, you can't stop people from doing a majority of their plotting on plurk or discord first. people like to chat about plot and game things where they chat about everything else, and since very few people use personal journals anymore, that's either discord or plurk depending on the game.