https://steemit.com/search.html

https://steemit.com/steem/@clayop/lets-request-steem-to-poloniex
https://steemit.com/steemit/@kingjohal/poloniex-request-form
https://steemit.com/steem/@kingjohal/poloniex-coin-request-form--all-steemit-users-submit-a-copy--lets-get-this
https://steemit.com/poloniex/@joseph/time-to-make-a-move

+Actually they don't really consider request volume. Here's a chat with OldManKidd, senior Poloniex mod and part-time support guy:

[17:27:49] <PFunk> Hey if you're around, I think you said way back when that Poloniex doesn't really consider the volume of coin requests, and a lot of them could actually be counter-productive. Is that the case?

[17:28:32] <OldManKidd> yes and correct it is not voting

[17:28:51] <OldManKidd> how many requests for a coin does not influence the decision

[17:29:06] <PFunk> Ok, thanks for clarifying!