fmr

Is there an easy way to open the alfred settings using alfred?
 
Either directly or as part of a workflow.

I'm not sure what exactly it is that you are looking to do but as Jonas suggested, you can pop up Alfred using Cmd+Space (or whatever your hotkey of choice is), then press Cmd+, will open the preferences window. You can also pop up Alfred and type 'preferences' and 'Show Alfred Preferences' should be one of your actionable results. Or, finally, if you meant from a script:
tell application "Alfred 2" activate tell application "System Events" to keystroke "," using {command down} end tell  
That would activate Alfred and send the Cmd+, keystroke for you and show the preferences.

This is a workflow for fetching the latest topics on this forum category (i.e. "Share your Workflows").
 
After typing the keyword, a list of the latest topics will be shown and after clicking on one, the workflow will take you to the url of the post.
Links:
    http://limelinx.com/9moq
    https://www.dropbox.com/s/xap44zjjojwid0u/Alfred%20Forum.alfredworkflow
Usage: alff
 
Note: If none of the links works, please tell me, I will reupload it.

I'm aware of that but I prefer just deleting these files.  They are usually (re-)downloadable anyway.  But I can add another modifier to move to trash.  Then we'll both be happy :-)
 
included in my latest pull request on github: https://github.com/ddjfreedom/recent-downloads-alfred-v2/pull/2

Don't panic! Andrew is on the case: http://www.alfredforum.com/index.php?/topic/337-copy-to-clipboard-output-copies-a-literal-query-when-there-is-no-input-accepted/