Communism isn't a deus ex machina that would make all human beings instantaneously happy if they were to simply accept it unquestioningly. For that matter, communism isn't a comprehensive ideology at all, it's more of a collection of theorems regarding the socioeconomic development and structure of society, many of which contradict one another.
It's like a Christian who thinks they are inherently doing good by converting others to Christianity. You are taking a handful of decent theoretical ideas and imbuing them with the significance of divine revelation. Furthermore, you are arrogantly presuming that your flawed understanding of communism is the real communism, and discounting the possibility that other "communists" can easily interpret the ideology in such a way as to justify killing you due to your flawed understanding of communism. It's an incredibly naive position that doesn't withstand the most basic scrutiny.
Think about it like liberalism. The American and French revolutionaries claimed moral authority because they were overthrowing the hierarchical structures of feudalism and replacing them with republicanism, democracy, free trade, etc.
In retrospect, we can easily observe that these ideas and political movements, despite nominally being constructed to protect and enhance the freedom and equitability of human beings, have in reality created conditions which have massively infringed on the self-declared natural rights of human beings in ways that a feudal hierarchy could never have dreamed of accomplishing.
Likewise, even if society were to globally transition to communism, that would simply raise new problems and abuses of power that would need to be combated. In conclusion, "creating more comrades" is a futile and naive goal.
Additionally, there is a very convincing argument to be made that you have potentially pushed more people away from communism than drawn people towards communism, and you would obviously have no way of knowing whether or not that is true. From where I'm sitting, I see a lot more users who have blocked you and your ilk than those who have joined you, and my personal opinion of communism has grown significantly less favorable since I began encountering you people on Lemmy a few years back. But what do I know, I'm a dirty non-communist so therefore all of my thoughts and actions are clearly incorrect and evil in comparison to the enlightened and ethical behaviors of any individual who happens to adopt the moniker of communist.
God, ignorance really is bliss. What I would give to be simple-minded enough that I could ascribe a positive ethical value to something as utterly meaningless as "creating more comrades".