In the name tag there should go only names. If a path has no name, simply leave the name void, or ad a tag like "note:it=nome ancora definito". You can also add the tag noname=yes to confirm that the path really has no name (useful for automatic tools).

it's good to enter this kind of information, but there are no tags that tell on a semantic level what this is (e.g. information=trail_blaze?)

non ha senso questo oggetto, suggerisco di andare su openstreetmap.org o wiki.openstreetmap.org per capire di cosa si tratta.

benvenuto in OpenStreetMap. Suggerisco di aggiungere un tag per descrivere a livello strutturato di cosa si tratta (probabilmente office=<qualcosa>).

sarebbe meglio aprire una nota invece di comunicare via "changeset comment", perché quest'ultimi si legge soltanto chi guarda l'edit. Comunque, benvenuto in OpenStreetMap!

there are quite some problems with this (newbie / first edit): the housenumber is likely not valid for the whole polygon, as is the name and the name has also capitalization problems. The building:levels tag cannot have different values, you have to split the building into different building:parts in this case.

sorry, I take the post office back, it was indeed not at this position, so this was correct.

I have reverted this changeset because it has deleted a lot of information without adding any significant benefit, e.g. removed the post office, removed the details of 2 building outlines and a fence in Via Zaniberti, removed the details of Da Baffo, moved some bus stops to the middle of the road thus removing the information of the direction, ...
Although this is a lot of damage, I will asume good faith (new mapper) and an unsuitable editor (iD), unsuitable for a detail rich mapping like it was already present in this area.

checking this again, I'm not convinced of vandalism any more, it's likely just a bit careless editing by a newbie, probably in good faith. Another editor (Germana Massullo) had traced in sometimes questionable ways (geometries and tags often not precise) and this edit by the Ace had removed those and a bit more then necessary.

the Todis was already present (this edit created a duplicate), the Tuodì is not inside the building and the operating company of the Tuodì is not "Tuodi" (no need to repeat the name tag btw). My suggestion for the Tuodì is to add the name also as brand (as soon as the name gets changed into the real name of this branch).
If you know the name of the newpaper office, it would be really helpful.

reverted just now due to a problem in the reverter plugin.

this changeset is clearly vandalism. Deleting of valid stuff is not tolerable, even if you recreated the things later, it is still violating object history. I'm going to revert this changeset.

looks like vandalism

no comment, just deletions. Likely vandalism.

this changeset is clearly vandalism. Deleting of valid stuff is not tolerable, even if you recreated the things later, it is still violating object history. I'm going to revert this changeset.

please add comments to describe what you have done

Please be more specific with your changeset descriptions. "fix bad country" doesn't allow to understanding what you were doing or why.

Please note that place=locality is 100% wrong for a used building. It is a tag for an uninhabited place with a name. It can't be inside a city. It is a generic tag for an unspecific toponym (i.e. a more specific tag would normally be better).

Ciao Federico, anch'io sostengo che l'uso del suolo deve essere taggato soltanto sulle aree effetivamente usati in quella maniera. Le strade sono da escludere (sono landuse=highway). Le aree, diverso delle strade "highway", devono essere mappate al loro vero confine. Altrimenti si creano problemi (per esempio con recinzioni che non si trovano più al confine dell'area, oppure con oggetti vicini alla strada, che altrimenti risulterebbe appartenenti all'area adiacente).

yes, I'd generally suggest not using the building objects for the businesses inside, but use distinct objects. This is helpful because a business and a building are different things (e.g. regarding the start_date, maybe operator, wikipedia links, name, etc.)

My suggestion is to make it several objects, or use attributes (e.g. rental=bikes). amenity_2 and similar will not go anywhere. You could make a polygon for the cafe and add the bicycle tool stand as a node inside this polygon and have the tags just there.