Well, for no.3 points are automatically add to your's wallet when you create thread in these boxes :
.1 Thread in box CG gives you 15 points
.1 Thread in box Donwload Light Novel Raw gives you 15 points, 10 points for Eng LN.
.1 Thread in box Donwload Visual Novel gives you 30 points
.1 Thread in Lyrics gives you 20 points
.1 Thread in VL news gives you 20 points
.1 Thread in Walkthrough gives you 30 points
.1 Thread in Music - ost gives you 6 points
.1 Thread in Review, points in this thread are given to you by admin depend on the quality of the review, if your review is great, you will be given 500 points
.1 Thread in Box Manga gives you 4 points
.1 Thread in Box Download Manga gives you 15 points
.1 Thread in Box Anime gives you 4 points
For no. 5
You will be given 1 point for each day.
And other activities such as mention, add friend, etc is 1 point.
There are a lot more but you should be able to find out about them in during using this forum, have fun ~
Yes, posting continuously will be count as spam as well. You can see the top 10 stats on the main page of 4rum, if your name keep appearing on the board for more than 5 times,you will get banned. You should post something meaningful on those topics that are not outdated, keep track on those that still have user posting in them recently, posting in old topic will be count as spam. Have fun