The thing about Analysis is that no one has a perfect understanding of any piece of fiction - especially not something as dense, intricate, storied, and personal as Homestuck - so the appeal of Analysis is half in the information itself and half in the character of the Analyst.
No Analyst is ever going to be 100% correct, all the time, forever. Especially not incontestably so. I've definitely posted things that are either wrong or I just do not agree with nowadays. People evolve. Realizations are had. Thoughts, feelings, interests, personal politics, beliefs, times, and lives change, and therefore so does the lens in which the Analyst is viewing their media of choice.
Analysis is a Conversation more than it is a Definite Relaying of Facts. It is an evolving dialogue. It isn't comparable to a pure, mechanical summary of a plot or character thread, it is an Art Form. People stick by an Artist because they enjoy their Style - an intangible little thing, also constantly in flux, sometimes in minute ways and sometimes in drastic ways, as the Artist continues to hone their craft, and live the life they've been given. Same rules apply to Analysis. I just use words as a brush and a pre-existing piece of fiction as my canvas to express what I, in the moment, believe to be truths, and what I, in the moment, feel, and what I, in the moment, think is worth talking about. These things can change after a decade, a year, a month, a week, a day, an hour.
Analysts do not think or talk about fiction while seeing them as rigid mathematical equations that can be definitively solved. They do not view fiction through cold, robotic eyes, seeing only hard facts and definite truths. An Analyst does not necessarily see an indisputable "correct way" to read a piece of fiction, either. They are viewing art through a lens infinitely warped, and scratched, and colored and recolored by who they are as a person and what their circumstances are. Your favorite Analyst's read of a piece of fiction is deeply revealing of who they are as a person, what they find important, what they've been through, their politics, et cetera.
But that's all obvious, isn't it? That an Artist's work is personal.
We all get caught up in our opinions on how right or wrong we are as people. And that's all fair play - it's to be expected when you post your feelings on the Internet. But not enough love is given to the fact that this is Art, too.
The humble Essay on Fiction is just as soul-bearing as a Poem or a Painting. How beautiful that is.