Chapter 71 of Boku no Hero Academia was just re-uploaded even though it was uploaded a few days ago IIRC.
I dont know for sure if they are trolling or not, but judging from the comments ive seen, a lot of people feel trolled when they see a new chapter was uploaded, only to find out it was just a re-upload of a chapter that was uploaded before.
All the internet sources point at FA releasing it today, so it's rather impossible? Maybe someone uploaded mangastream's version before and it got removed?
Hmm... I assume you check your follows or the front page daily/regularly/very often then? If so, maybe your expectations of new releases are clashing with 'features' batoto has? That is:
1) batoto doesn't limit a group's possibility to fine-tune or fix their releases (and some groups are known to release even v3 or v4 updates)
2) archive option is for removing a particular upload from appearing on follows, front page, etc. It's great for batch uploads and fixes of chapters that have been around for a while, but since archiving an update of a recent release would remove it off the radar for many readers who happened not to be around inbetween the initial release and the updated one, there's a window of time in which chapter fixes are not supposed to be archived to avoid new releases going unnoticed by many.
If you do see some behaviour that goes against the above (lack of archiving for updated versions of older chapters, frequent reuploading of the exact same chapter, uploaders leaving "junk" around like older chapter versions next to new ones, etc.), report it in QA subforum so the staff can take care of the problem and either re-educate the uploader or punish them if there indeed is someone abusing the upload/notification system to annoy readers.