Basic cyphers & the same concept as a word puzzle.
>>Because it is mocking us, that's all.
Ignorant answer.
>>Explain every marking on the picture,
The markings are obviously connecting letters, in one case the word “hear” to ear, in another the form of a bow tie is indicated. Differentiation between [d]ays & [y]ears of birth are often used to identify 2 or more individuals. H(ope)y(ear) 88 as example.
Also, “Read between the lines”, (picrel).
>>19464642 LB for additional context. 00:00:23 Δ a coincidence?
I’m happy to provide helpful resources but I’m not going to write a dissertation for you. If you wanna know, you gotta work at it.