General Rule for amount of users
 

Hopefully this is in the right place since it doesn't fit in the other. Anyhow what is the general trend to the amount of users that sign up in a month if your just starting out. Say when do you expect to have 100 registered users etc... How long does it usually take a forum to take off.

For me personally, I would expect to have 100 registered members in 4-5 days but every forum is different and there's no set amount of registrants that have to be made within a specific timeframe.

In short, Every forum is different, and many factors are in play with regards to the amount of registrations whether it be, to lazy to register, whether the content submitted on your forum appeals to the person prompting them to register. There's just to many factors to mention but all in all I would say there's no specific amount though each admin can set their own goal whether it be for a daily, weekly, monthly timeline to the amount of registerations they are expecting/setting.

When you don't spend to much time on this site criticizing our lovely Admins/Mods... sooner than later :D

there is not much to calculate actually:

1x effort == 1x result ...

100 users in 4-5 days wow im behind, i just got 15 and its first day launch. No one made a post though and they arent bots either. Weird.

they are waiting for content...