Following a trail adds support to the community/project that the trail owner is supporting. For example, the utopian-io supports open source project, the qurator trail supports quality members. By following their trail, you are supporting good content creators which in turn adds value to what steemit is all about. There are many people who don't have the time to curate posts and don't wish to waste their voting power, so by following a good trail is one of the option.
To see what trails are available, you can
go to steemauto.com
login with your posting key via steemconnect
click on curation trail
browse for the many popular curation trail available
or you can search for one if you know the name
click follow
after that, you can change the setting of voting weight
Following a trail adds support to the community/project that the trail owner is supporting. For example, the utopian-io supports open source project, the qurator trail supports quality members. By following their trail, you are supporting good content creators which in turn adds value to what steemit is all about. There are many people who don't have the time to curate posts and don't wish to waste their voting power, so by following a good trail is one of the option.
To see what trails are available, you can