I thought the "Merge Posts" option was already integrated into phpBB by now, but obviously I was mistaken.
Anyway, why I bring this up has to do with my time as both a local moderator (LM) and a moderator on TWC. Furthermore, I also have some experience with the mod tools that IPS, XenForo, and vBulletin has.
IPS = LM at TAL (ended in May/June 2017 due to the close down of the old BSF forum in late April 2017) for 3 years
XenForo = Tried a demo (full forum access for 72 hours) at their website over 5 years ago (I took a few pictures and still have them)
vBulletin = TWC are using vBulletin and that's why I miss the "Merge Posts" option in phpBB plus a few other things
What do you think, is it time for phpBB to get better mod tools without an extension(s) similiar to what the other forum software has?