is it necessary or just a trend????

Assalamualaikum w.b.t

ermm lately i'm being wondering and asking myself ...why people or more specific among blogger ppl kindly love used word "wordless wednesday"?? adekah ia satu trend or keperluan utk sesuatu blog?? ermm adekah aku yg ketinggalan dek arus modenisasi 'blog'? dan kenapa 'wordless' ini did'nt use on monday, tuesday, thursday or on ect day?? any gud explaination on that?? hope i will gain from that??

but still wondering???? huhuhu

nota pipi : wordless or speachless????