Why the fuck do people get mad about this? The site warns you there's a chapter gap, there's no way anybody's gonna accidentally spoil the ending for themselves unless they can't read. The only people who are gonna read it are the people who are already not that invested and just wanna know how it ends so they can drop it. It doesn't "steal" anything from the group currently translating it, as they still have the whole entire rest of the manga and anyone who does give a shit about it is still going to appreciate them for doing it, and won't give a shit about the final chapter until they catch up.
It hurts literally nobody. In the batoto days, when the website didn't warn you about gaps, then it was an issue if people didn't put their own warnings at the beginning 'cuz people could read it by accident. Now, who cares?
Sniping isn't a big fucking deal and I'll never understand why people get so up-in-arms about it. It's only ever hurtful when someone shits out really quick and shitty translations just to squeeze in a few days/hours ahead to beg for donations. Ya'll calling them trolls and shit like translating something is staking some sovereign claim on a series, but people who are ready to drop it love them for giving it closure and everyone else doesn't have to read it.