The Impossibility of Double Gallows

[ChenZheChina]

I saw these combinations in You are not allowed to view links. Register or Login to view. , You are not allowed to view links. Register or Login to view. and You are not allowed to view links. Register or Login to view. but am not sure whether they should be viewed as “double gallow” or not:

Possible tk in Line 7, You are not allowed to view links. Register or Login to view.
   
Takahashi Takeshi: “qekar”
René Zandbergen: “q@145;kar”

Possible tf in Line 2, You are not allowed to view links. Register or Login to view.
   
Takahashi Takeshi: “qef”
René Zandbergen: “qef”

Possible tk in Line 17, You are not allowed to view links. Register or Login to view.
   
Takahashi Takeshi: “qlky”
René Zandbergen: “{q@145;}ky”

I wonder if it could be one EVA-t and one EVA-k / EVA-f, with the first gallow written a bit smaller so they do not conflict too much.

If they are actually EVA-t and EVA-k / EVA-f, the three words would be tkar, tf and tky, respectively.

However, I have also noticed that there is a contradicting evidence:

Line 10, You are not allowed to view links. Register or Login to view.
   
Takahashi Takeshi: “q?or”
René Zandbergen: “q[?:e]or”

In this case, the rare character that look similar to characters above, is not before another gallow character.