Well, no, it's less that and it more that it can be frustrating to see this enormous post suddenly appear with no real ability for anyone to participate in what happened. Going off of experience it can also be a bit difficult to read at times.

I've seen people do this in the middle of a scene with other people, as well. You didn't do that(though I'm of the opinion you could have waited for [@Azakma] to clarify Clementine had run off or something, and you did kind of assume she would immediately) but it still means it cuts out the possibility of other people at least watching the fight or something, as you absolutely can have the actual fight without interruption if you want to when it's like this.

I wish Rain could have been more tactful about it, but I'm also not the biggest fan of collaborative posts and it's absolutely not out of laziness or anything like that.

That being said, I admit to skimming posts or even skipping over them if they're not related to my characters. Not out of laziness, and more because I want to keep track of what's happening strictly in posts relating to my characters so I can make my own post. I'll usually read them in more depth after I've made my own post unless other circumstances are at work.