Quote from: hashkonofficial on February 23, 2018, 12:47:43 PM

What is the difference between activity and posts? On which factor the rank of a newbie depends? On activity or on number of posts? My activity is still 14 but post count reached to 40..

After your registration you have 14 days cycles in which you can gain up to 14 Activity points.
Every post generates you 1 Activity point but in 14 days time span you can gain up to 14 Activity points even if you have more than 14 posts.
On the day 15 the cycle restarts and you can again collect your 14 points.

Then comes the Merit system. See the infographic

You will find all your answers here > https://bitcointalk.org/index.php?topic=2534500.0

If you are lazy and don't want to read. here >

Infographic - Merit & new rank requirements, all the credit goes to 8Habits:
Link to the original thread.

Click for large view