The VOIDRUNNER'S CODEX is coming! Explore new worlds, fight oppressive empires, fend off fearsome aliens, and wield deadly psionics with this comprehensive boxed set expansion for 5E and A5E!
Long time players are the taste makers, leaders, and influencers of D&D.
For example, Enworld is where the truly elite players gather and synthesize the future of the game.
If you a believer of the more is more approach, then consider Level Up. It's a 5E(ish) system that adds all sorts of cool stuff you can add to your 5E game. From the same people who brought you this very forum!
For some, it's a sense of habit or obligation. For those, you reiterate that they shouldn't play unless they actually want to and that leaving won't hurt your feelings.
Others may be running on empty themselves. They may a hiatus to recharge or understanding as they're going through some things.
Reason number three vagueness is good is that WOTC won't try to bring a second Tyranny of Fun upon us!
https://dragonspawnlair.livejournal.com/12942.html
That's why YouTube videos have comment sections. You can always suggest other games in the comments if you want to. If it's a good fit, then your comment will get upvoted.