I will simplify this a little.

Users should only have one account (e.g mine is Zuric), as long as you are not signing in under multiple aliases and posting on the board, then you should be fine.

Using your cell phone through your shared Wi-Fi connection won’t be flagged as suspicious as long as you are logging in under the same alias

If there are more than one agoracom users sharing the same internet connection and making posts to the board this would be flagged as suspicious.

Zuric