I just have to say that blocking people here in the community forums is completely pointless.  I blocked SaberStorm to cut down on the amount of useless noise I see on the General Discussions forum, and it didn't help at all:

• I still see the threads which that person started.
• I still see placeholders for that person's posts.
• I still see replies to that person's posts.
• In short, the amount of useless noise I see hasn't changed at all.  All that has changed is that some of the useless noise is now in the form of placeholders that keep tempting me to click on them to reveal their content.

I can kind of understand the reasoning for implementing blocking this way, but at the same time this renders the function useful for my purpose.  I can't really see blocking as it is currently implemented being useful for any other purpose either, but maybe I'm missing something.

I came here with the exact same complaint, and lo and behold, it is unsurprisingly not only already made, but also disappointingly left to rot like it is everywhere else.

Is there a way to block those placeholders? When I block something, I want it to completely cease to exist on my end. None of these placeholders constantly reminding you that the blocked thing is still making useless noise right beside you, and there's  no way to make it stop; in fact the system itself will make useless noise on its behalf.

Is there a way to block those placeholders?

Sure. Put the code below in a user style addon like Stylus.

 Anything you can identify by an identifier can be modified by your browser. You just need to know how to identify it. And it will not block replies on game pages, since those are not children of posts. It will also not block topics, but apparantly itch does not block topics either. Just the posting inside the topic.

This was tested for like a whole two minutes. (Personally I do not block people. I can use my scrollwheel just fine. But for some cases it sure would be helpful for out of sight, out of mind blocking).

@-moz-document domain("itch.io") {
div.post_grid:has(div.post_content > div.post_body.user_formatted > details.toggle_post_body) {
    display: none;
}
div.post_grid:has(div.post_header > span.post_author > span.name_placeholder) {
    display: none;
}
}