[kapowaz]

> TfL tried to ban it

Why would TfL specifically get involved? It's more likely this is an issue for the ASA, on account of it appearing to use the word ‘FUCK’, which is hardly controversial.

[dalore]

Looks more like FYCK to me, and that is the same levenstein distance as FCUK which is everywhere.

[kapowaz]

Transposition vs substitution; I'd say F*CK is more likely to suffer the ASA’s wrath than FCUK. But who knows, need more details to be sure of anything.