Why war in Old School?

Hi I'm fairly new to clanning (Started in 2011) and I'm not really into OSRS, but a good amount of people I know are starting up. I prefer warring on legacy, but I love to spectate Old School warring and view competitive fight topics on here. As someone who doesn't play Old School, I'm interested to know what clans do to attract members and how would you attract someone like me into Old School.

So answer these:

What do you have to offer in your clan?


How do you get members to join?


How do you welcome new members?


What makes your clan unique?


Thanks!