# 2,646 3,008 characters

Is a crossed out 4 still a 4?

There seems to be a running joke on Code Golf that "A crossed out 4 is still a 4".

On Find an Illegal String, Step Hen posted the following answer.

# Taxi,  4  5 bytes

crossed out 4 is still 4 :(

'"]'"


This post linked to Mayube's answer for User Appreciation Challenge #1: Dennis ♦

# Braingolf, 4 3 bytes [non-competing]

crossed out 4 is still regular 4 :(

&JP


## CJam, 45 <s>44</s> 4240 36 bytes

q(\0se|_,("6* 3* 2e* )f{} _W=+ "S/=~


Which included the following exchange in the comments:

Some formatting <s>not</s> required.... <s></s> – SteveFest

@SteveFest But crossed out 44 is still regular 44... – Challenger5

Aw! You got me! I forgot that! – SteveFest

This hyperlink chain then continues to link through a multitude of answers written by different users on different questions.

What is the running joke with crossed out 4s? How did the joke get started? Does this chain of hyperlinks have an end?