I am in the YoBits signature campaign at the moment, unfortunately, only Jr. Member+ are able to join it, which you would need to get your activity to 30 to reach Jr. Member. However, with the YB campaign, Jr. Members are paid ~70 bits (7000 satoshis) per constructive post with a maximum payout of 20x posts per week, but as long as you upgrade your signature as you rank up, it seems to take that into account and push you into the higher payrates. So in the meantime, all I can really suggest is continue to make constructive posts to bring up your activity to become a Jr. Member and then more signature campaigns will open up to you..
Is it true that 7000 satoshi per post?
Wow I am very interest in joining a profit but to achieve Jr. Member I need a long time
It doesn't really take quite so long to get to Jr. Mem, although I believe that you are limited to a max 14 activity per fortnight (2 weeks), so as long as you post constructively regularly, you should be able to get to Jr. Member after enduring Newbie for a minimum of roughly 28 days..
..and the YoBits payment schedule is as follows (and they are strict about posts being constructive as they do actively ban members that are seemingly spamming posts to make bank, a post being constructive is basically a post being conducive to the topic at hand and having value to the conversation, non-constructive posts would be like one word replies or a reply with little or no value to the topic really):
★☆★ YoBit.Net Payment Structure ★☆★
Newbies aren't permitted to join this campaign anymore
★ JR Member: 0.00007 BTC per constructive post. 20 Posts max per day.
★ Member: 0.00013 BTC per constructive post. 20 Posts max per day.
★ Full Member: 0.00020 BTC per constructive post. 20 Posts max per day.
★ Sr Member: 0.00030 BTC per constructive post. 20 Posts max per day.
★ Hero Member: 0.00030 BTC per constructive post. 20 Posts max per day.
★ Legendary Member: 0.00030 BTC per constructive post. 20 Posts max per day.
YoBit spammers actually have a special thread dedicated to them on this forum :
https://bitcointalksearch.org/topic/public-list-of-yobit-spammersthis-ones-gonna-be-long-boys-1241968 If you intend to spam, you will get on the radar of the people monitoring that thread. Just do some proper research first and post constructively and do not spam, it is not worth it. You will not go up in rank quicker, by posting 30 to 50 posts a day.
The last thing we need, is for newbies to spam the forum with non-constructive posting. They should bring back the newbie jail concept for these people, to give them time to read the information provided here and to stop double posting of the same topics.