Can you elaborate which actual streets were missing from the 79 ways that have changed from this edit?

Here you seem to have accidentally moved a load of benches and other things including the Southsea Hover Terminal.
Achavi is a good way to visualize what happened here:
http://nrenner.github.io/achavi/?changeset=45694906
I think this edit might best be reverted and then redo whatever actual edits you were trying to achieve around the Ryde promenade.

I'm confused how come you've labelled "DS Smith" Weighbridge as a hospital.

Welcome to OSM.

Just a couple of minor hints -
you probably want to check your spelling ;)

Palyground is normally spelt Playground (this edit and one or two of your early edits)

Capitalization of Wooburn Park might be good on this one too.

Regarding the path way/273654934
It shouldn't have a description as the proper name. This should be moved to either the tag note= or osm.wiki/Tag:description=.
Also it's hard to believe this path has a signposted incline - the area doesn't look that steep anyway.

Can I remind you of the lifecycle concept, so one can put 'disused:' in front of the primary key (in this case amenity).
For more detail see: osm.wiki/Lifecycle_prefix
Alternatively if the phone box has been totally removed, one can just delete the node in OSM.

Hmm something wrong on JOSM upload, my comment was meant to be: "Junction name, signed incline and fix peak position."

I also read that it had reopened in WightWash (CAMRA IoW magazine) but I forgot to mention that.

The Wikidata ID for at least the Amsterdam Shipwreck was valid, so why did you remove it?

The Sportsmans Rest looks like it's reopened as I went past it the other day.
However for things that are closed you shouldn't really modify the name, but instead put 'disused:' in front of the primary key.
See osm.wiki/Lifecycle_prefix for more information

Hmm something wrong on JOSM upload, my comment was meant to be: "Postbox detail and public telephone has become a mini library"

I'm not sure where you get your information from as: 1) The Trafalgar has been closed since the end of summer 2016 and 2) The location is a bit inaccurate as it is nearer Edinburgh Road.

It's probably a good idea to mark this as private as it's not for general public use.

The original one is in the right position and also has more tags

Ummm Sant Yago is already mapped.

If the telephone is now removed - one should use the lifecycle concept to prevent others (and computers) thinking this is still operational.
Basically put 'disused:' in front of the primary tag - in this case the amenity tag so it would become 'disused:amenity'.
For more detail see disused=*:

My comment was meant to be:

Southern Transit road is not for public use

You seemed to have made Worthing Road an angular bend here.
Surely it's more of a smooth curve?

You seemed to have made Worthing Road somewhat of an angular bend here.
Surely it's more of a smooth curve?

foot=yes is *not* needless on a highway=footway, typically it can elude to the path being an official Right of Way.
Often people used this tagging before the community settled on the unambiguous designation=public_footpath tagging.