...All these mention bots are kind of useless when you don't know who has their mentions enabled, and who doesn't. (edit:This bot only does quotes, but i also saw a different bot that did @*s)...
I think you are talking about
Maggiordomo bot managed by the member Piggy.
Maggiordomo is the best solution for notifications on the forum because is the most advanced bot and notifies about all possible mentions.
Quotes, custom quotes, edits, mentions of username, username with @, profile link. Notifications are sent by PM or in the Telegram app.
I think OP can look into
Maggiordomo bot because it should be very interesting for him to know how Piggy was able to get all of these mentions to work.
Of course, if somebody hasn't enabled it then is kinda useless, but this is so easy to set up that I think, every member who knows about, already have it working. I was missing many discussions because I didn't know that somebody mentioned me, quoted my posts or even only add my profile link in some scraped file. To be honest
Maggiordomo notified me 2 times about winning in a promotion (150$ and 100$) which I was not aware of. Signed up and forgot about after some time, when I have won my signup post was quoted and bot let me know about this.
Notifier bot is really powerfull toll and should be added as a standard feature on the forum.