Since these topics are very old people don’t check them often or the positions you want to apply for are already filled. Honestly I don’t really use these forums when I’m recruiting for my channel… I don’t check the posts where people offer their help unless I ‘know’ that person or that person is offering something I really need and are hard to find.
What I suggest you to do is looking at channels you would like to work on and that might still need help. Check the wall if there is a moderator in your language and PM that person to offer your help. Don’t forget to mention the drama and what you have to offer. A “Hi, I want to join your team” won’t usually work. Please also make sure you check properly because I sometimes get PM’s that people want to sub something in a language that has completed subs for years.