I run a rather casual FC on Cactuar, We run anywhere between 10-30 active members depending on time of day and whatnot.
Being a company leader is only as stressfull or important as you want to make it on yourself. My companies main goal is to find other people to play and chat with, I'm not into raid progression but don't mind dabbling if it's with like minded people, so on and so forth. I cast a wide net for casual and hardcore players alike as I find community is more important to a company than a specific gameplay focus.
Be yourself and it will speak leaps and bounds about your company, the way you and your members interact with the game and other members of the comunity will have a big impact on if you can attain or even retain members. Owning a "Large" company isn't something that you aim for, the people will come with time and filling a company with bodies is never a good thing people are often scared when they see that a FC has 100 members and that like 4 of them are ever online.
Once you have a decent number of members you can always do things to keep people engaged like run community events, contests, craft/gather events for company projects or helping members through their crafts and whatnot. These things should come and happen naturally rather than be forced. That's how I run my FC I keep myself as available for my members as possible and strive to be able to provide them with whatever they need.
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What makes a FC Die out?
There are some very simple and logical reasons this happens.
There are many others but these are basic issues you will run into with a FC, now I suggest start small before expanding so you have a solid member base to rely on with assisting with new members and whatnot.
- Members leave or go on break - This happens nothing you can do about it.
- Members leave for other companies and take others with them - If someone leaves your company and several members leave along them and you don't know why, that's your problem.
- Members leave due to infighting with other members - This ones touph but it's part of being a FC leader, I've had to cut a few members from my company because they refused to have basic respect for other members when asked to do so.