That sucks to have happen I'm sorry it happened to you. I might stop posting stuff myself even though I usually only do ones for more minor series hoping to get them attention.
You will not be safe, this is due to DMCA requests, if the publisher decides to flag Helvetica Scans it will be the same, is visible from r/manga due to centralization but from comments, it has been clear that also in other communities
There is a lot I want to say about this, it's pretty bittersweet seeing someone take over something you worked on for so long. But, honestly, it's none of my business anymore. If you hate what /r/manga has become, maybe go check out the sub and don't let the new guy screw it up. It looks like he's at least trying, so I will give him credit for that.
You will not be safe, this is due to DMCA requests, if the publisher decides to flag Helvetica Scans it will be the same, is visible from r/manga due to centralization but from comments, it has been clear that also in other communities
I mostly do stuff that has no hope of being licensed, and stop scanlating series that have been licensed. As I understand it OP was posting stuff that was licensed (such as a returner's magic) so I mean it was pretty likely that he would be flagged. If you work on series that are licensed in english you're pretty retardo anyway.