This is not a rule but a timely advice to newbie who wants to keep their posting reputation in good standard.
One meaningful post is better than 15 to 20 post that are low in quality just to fulfill signature requirements.
True one meaningful post is better than 20 low-quality posts. Since you know this hypothesis why do you have 384 posts and only 30 merits? This means you have failed to make a quality post in the forum. Only 30% of your posts have good qualities and the rest are not eligible to be merit. Perhaps you just know about this now and that is why you want to share it with the public Good one. Once you make a massive contribution to the forum, once can still be a newbie but have the quality and requirement of a legendary member.
Note: The essence of ranking up is not for signature campaigns as any newbies who have that in mind will never rank up in the forum.