I would like to contribute my 2 cents and also use this space to express myself freely as others have done. I do not intend to offend anyone or complain about the players individual RP, but about the behavior of some players. Considering that my profession works with human behavior, I can think of some directions for possible solutions using the Nudging concept from Behavioral Economics (treating the server as an environment), but I intend to reserve that for a future post.
This is my first year at BGTSCC, but I've played on other servers for almost 10 years. My newbie perspective here is that topics 1 and 4 pointed out in the post are primarily responsible for the immersion break. In addition to the fact that the mechanics of NWN2 do not favor the immersion of RP, making most of the immersion a matter of individual responsibility of the players. Each player needs to identify the variables that make him break the immersion, this is a subjective issue, and evade it whenever possible. Perhaps this involves running away from some players or some situations, such as the campfire conversations that have been pointed out. For me, campfires provide the best RP engagements, but also favor an egos competition between players and characters who want to be The One™.
I notice that there is a difficulty in playing a mundane character (low level or level 30, it makes no difference) on a server with many players who want to be The One, demonstrating how important they are, how much lore knowledge they have accumulated and the amount of DM events they participated in. They feel and want to be treated in a special way, and when you play a mundane character, you will fulfill the role of being the audience for these players/characters to feel special. And sometimes it sucks because they feeling special is what breaks the immerson for you.
Playing Lionel here, who always says "I'm just a simple elf", I've been an audience for the ego of many players, and the tendency is for them to exclude you in the future, because you don't want to play the game of egos with them while playing a character mundane. This is one of the reasons that has made me slowly leave the server, as I have always preferred the mundane characters.
The two things I like most here are: the high fantasy world with wonderful lore and the possibility of intrigue RP. As a high fantasy server, players are expected to have a greater tolerance for the amount of epic events happening simultaneously. But the choice to interact with them is individual and not mandatory.
As for intrigue PR, I think it is the point that most affects the behavior of players. I realize that not everyone knows how to differentiate the consequences of an ICly / OOCly intrigue.
Some things I've noticed or experienced here: players using information on alternative characters to annoy other players, alt characters harassing players, OOC aggression for IC reasons, abuse of actions without rolling dice to annoy a character, excluding players from a group / guild / faction without good reason ICly or to flatter someone, be toxic in Discord or in OOC discussions for irrelevant things that happened in game, players who pretend to RP an evil character but remain aggressive and competitive OOC.
Personally, I like to use my character's examine to remind players that I am not my character, I write this in all biographies. Every time I have good RPs I reinforce the behavior of the other player, sending individual messages of thanks for the interaction and treating everyone with great respect OOC, in game or in Discord. I miss this in some players. I think some are hiding in the speech that "OOC messages break immersion" in order to be individualistic and not need to reinforce the sense of community.
To be honest, and with no intention of accusing anyone, I always heard the rumor in the NWN community that BGTSCC was a server where a few groups of players were privileged and closed in their bubbles, without the incentive to interact with new players, or with guilds privileged by DMs.
Perhaps a few players have been historically privileged, or it is all just a rumor, but my experience of 10 months here shows me that there are people who do not accept the way other players choose to play, especially the "loot run", and these players always break my immersion when trying to show how special they are and how many intrigues they are involved at the same time, whether at campfire or FAI. I intend to write about possible solutions in another post.