Note that there are certainly some valid building tag improvements undone by this revert that could be reinstated, but they need to be re-checked, as there are many incorrect ones in there as well.

I have reverted just erroneous node move in 124164769. However I question if this mass deletion should not be reverted in its entirety.

reverted a single erroneous node move in 124164461

Reverted by 124161845

What is the source for the building use tags? The whole Blackwattle Bay Substation area has been made a building (only 1/3 is a building). A lot of incorrect landuse/building:level tags around the corner of Union & Pyrmont St.

The buildings on the piers at Walsh Bay have been incorrectly converted to piers. What is source of this? As a local, many of the building tags don't seem correct.
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Published using OSMCha: https://osmcha.org/changesets/124055103

Also, What is the source for this? Some of the Fort St public school buildings have been tagged residential. One of the others tagged as retail is primarily residential with a small sandwich shop at the bottom.
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Published using OSMCha: https://osmcha.org/changesets/124050780

This has deleted valid building:part areas or incorrectly changed them to building. It also has questionably changed some building tags for buildings which are largely mixed use (commercial on ground, residential upstairs). No source provided.
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Published using OSMCha: https://osmcha.org/changesets/124046438

The Sydney Harbour Bridge certainly still has a south pylon holding it up.
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Published using OSMCha: https://osmcha.org/changesets/124055103

Hi, Was the Rotunda deletion intentional? It's certainly still there on the ground.
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Published using OSMCha: https://osmcha.org/changesets/124050780

Hi, The building=roof areas at circular quay were there when I walked past last week. Have they really been removed?
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Published using OSMCha: https://osmcha.org/changesets/124058312

Partially Reverted by 124072843
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Published using OSMCha: https://osmcha.org/changesets/124051694

What was the problem with the various building:part areas which were deleted, specifically on the Hyatt Regency?
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Published using OSMCha: https://osmcha.org/changesets/124085884

This looks changeset looks like it only contains a single accidental node relocation. Reverted by 124120113
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/124059190

I just reverted part of this changeset in 123832598, as the suburb of Camperdown had been changed into a Park.

This name change is incorrect. The labelling of this (when I jog past each day) is "Blackwattle Bay Marine", which appears to be the name of the company which operates it. Blackwattle Bay Marina is distinctly different (a few hundred meters north-west)

The NSW Base map has this as Bayview St, while the council web site suggests it's Gottenham St. On OSM we are meant to go by what is "on the ground", which I guess is the street signs... Bayview St.

I'm interested in why Johnston's Bay was moved? It's now basically in Whites Bay.

I'm curious as to what was so malicious about these changes?
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Published using OSMCha: https://osmcha.org/changesets/116993613

Some details are here, however my changes were based on a site survey. https://caportal.com.au/tfnsw/wcxri/news-archive?hview=post-83d892-weekly-update-rozelle-lilyfield-and-annandale-w-c-13-september