Intelligent monsters will act intelligently and go after the most immediate threats to their safety first , they will be worried about the archers and mages in the back line , and they will try to coordinate their group to keep the melee enemies engaged with their melee units while their ranged units attack their enemies ranged units. Or they will use ambushes to deal with these threats first.
Animal monsters will simply engage the closest enemy and attack and retreat if they are injured.
I am lurking and watching the dumpster fire at this point , reddit went full Authoritarian on Dndmemes and sacked a bunch of cool mods because we turned it into a goblin porn subreddit for the shutdown/blackout and the admins did not like that... so I am posting here now and watching Reddit burn in the distance.
One thing we need to break into a billion tiny dust like pieces is the idea of "Super Moderators" who control hundreds of different boards . This idea lead to the group think that infected Reddit , because when a "Super Moderator" succumbs being prejudiced then it can effect the entire site , either directly on sites the now abusive "Super Moderator" deletes all posts that challenge their prejudices , or indirectly via a chilling effect when the abusive "Super Moderator" bans people from ALL of the subreddits they control, just for interacting with subreddits they disagree with , regardless of the content of those interactions , and with zero hope for appeal since any attempt at communication will be met with silence and a mute.
Use public key encryption programs like Open PGP or GNU Privacy Guard.
BUT you will want a program that is under active community development which releases regular updates to address any weaknesses or flaws as soon as they are developed , and ideally you want to be able to hand a copy to all trusted people you would like to securely communicate with.
That can be difficult in a small town where the only supermarket is supplied exclusively by a wholesaler who has a deal with Nestle. And ordering candy from Amazon will just mean you get melted and/or spoiled chocolate weeks after you order.
Stay away from advertising money , if you need money to keep a server up then start a gofundme or a patreon or something ... make it community based so that your instance stays community based .
Being a grognard is not a bad thing , having an experienced gamer who "has been here since the beginning " at the table who knows roleplaying backwards, forwards and sideways can be a valuable resource to a club , they can be mentors and leaders and now that many are hitting retirement age and now have the kind of free time they have not had since their teens they are available and bored , and they have been mulling over campaign ideas for years as well as reflecting on things that make some sessions memorable and other sessions be utter dumpster fires.
This is worthy of an Austin Powers sketch.