We could change up propaganda sometimes to evade filters, and our posting warriors would have to persevere through bans, censorship, hatred, and spam filters of course.

Posting is a convenient and safe procedure that anyone can do from the comfort of their home, but infiltrating organizations and converting them to altright as you say is highly inconvenient and the average person can't or won't do it. It hasn't been done even though it's been called for since at least 2016. We have to cast our nets much wider than local organizations. Besides, we will have a high failure rate of converting normies until we reach a critical mass of redpilled normies where white nationalism becomes normalized. You don't want to go into a local organization when there's such a low success rate of converting normies or you could become pariah.

Some benefits of the posting propaganda method:

1. It's free

2. It's easy and convenient to copy and paste text onto comment sections, anyone can do it and people would be most likely to do it over other activism

3. It's safe because you remain anonymous

4. You can reach millions of people this way, far more than you could reach with any other method like flyering

5. If you lose in a discussion you don't become known as a public pariah

6. You don't have to be handsome, thin, well-dressed, well-spoken, groomed, or have a commendable normie life to convert people

7. It gives you real practice and skill at redpilling people which can then be used offline