I'll be straight with you guys. It is a very sticky point and the "grey area" is so broad is to make it difficult for consistency in enforcement because it falls under 2 rules. One allowed, the other not.
On kick polls - You need to state your intention up front before starting one. Admins do turn them off while on the server and should turn them back on when leaving. That is well and fine and not a point of contention.
Here is where the issue come along:
Kicking for playstyle - Not allowed. This is the rule that protects your right to play the game like you want.
Leeching, delaying, griefing - Not allowed. This is the rule that protects the rest of the server from trolls.
The question is at what point does playstyle become delaying/griefing? That is the grey area and very much subject to interpretation. Nearly everyone has their own idea of when that line is crossed. It is the reason for the recent campaign (that I support) to fix the MOTF spawn so that it occurs every round and is randomized in some fashion to prevent camping its spawn point and altering the current open mode of Battle. (Remember when everyone just formed a big ball due to how experience was awarded?)
Because the grey area is so broad, some Admins will turn on kick polls to allow the entire server to weigh on on whether a player is using their playstyle, or delaying/griefing. This makes sense on the surface and so that is why you will see that occur.
The issue with this is that if the team without the HX/HA/delayer has a numerical advantage, they are going to press 1 to kick and get their x2 as they have more than 50% of the server population. So I don't entirely agree that it is a valid way to make that determination, but it is the only method we have of getting input from the people who can see what is happening.
I hope you can understand the difficulty of the situation and why 2 different Admins can give what appears to be on the surface, contradictory rules interpretations. They are not. Within the ruleset, they are consistent. What you will see is a different interpretation of a similar situation and which rule applies at that time.
Please go vote up the "Fix the MOTF" threads. We need the game mechanics to deal with the situation, and not the vagaries of interpretation of whether a player is "delaying" or "just playing their class".