Huaiwei is a missing Wikipedian, whose last edit was on 8 February, 2006. It is not known if he will ever return to Wikipedia, his vigil can be found here.
"Huaiwei is one of the pioneers of the SGpedians' Noticeboard project, the foundation and building block of the Singaporean Wikipedian community. Without the noticeboard, the level of coordination and co-operation amongst Singaporean Wikipedians would not have been what it is today.
He has tirelessly worked on and improved many Singapore-related articles that would otherwise fall into shambles and obscurity. He has put the upmost effort in making sure these articles are well maintained and up-to-date, not matter how mammoth this task may be. He has created and written many interesting articles that other SGpedians may otherwise have not even known about.
His contributions on the free encyclopedia are highly regarded and recongized, hopefully inspiring a next generation of SGpedians' to continue to his good work. On behalf of the SGpedian community, I thank him greatly for that. His works will be clearly and sorely missed by the community." - Mailer Diablo 16:25, 6 March 2006 (UTC)