I`m still newbie for bitcoin forum and I need to know, is there a limit this forum for a day..? because lot of my friends always tell ,the always ban. can I put unlimited post related to subject and put replies..?
Yes, you can. There is no limit on how many posts you can make in a day. The only limit here is your post quality. You need to make a good quality and useful posts. The problem is as you're targeting for a higher post count per day, your post quality tends to lower. Most people are too focus on post quantity without taking care of their quality, these are the ones who got banned.
A quick question you can lose activity ? Or is something you earn and it will only go up ?
It is possible to lose your activity points. Please read about how activity works here:
https://bitcointalk.org/index.php?topic=703657.0 and
https://bitcointalk.org/index.php?topic=582736.0Even though there is no certain limit one can ask what are the benefits of posting 100 post/day? If you have so much to say, can you write more information on one post instead of making large number of them. Or am I missing something here?
The main motivation for casual spammers is to get ranked up as soon as possible and get paid for posting (signature campaign). Do you know what a signature campaign is? It basically pays you for making posts in this forum. Besides that, there is quite a large demand for high ranked Bitcointalk account so some people also spam to immediately gain higher rank and sell them later (account farming).