No, if i found or any member reported if there any member who already joined on campaign round 1, re-join with his/her alt account, this member will be disqualified.
siena23 and makankambing both account are connected. Click on below link for details
https://bitcointalk.org/index.php?topic=2544574.msg54249755#msg54249755makankambing participate in Sheng world round 1 and received 8200 stakes. Spreedsheet no 11
siena23 participate in Sheng world round 2. Spreedsheet no 83.
Bitcointalk profile link:
Telegram username: siena23
ETH (ERC20) Address: 0x7ae419f665A8148c5472995b63F52f162a52e8a0
Join Campaign: Twitter
Twitter profile link (social media campaign only):
https://twitter.com/elmiaputri23