Nostr doesn't work like Twitter. When you post the note goes to multiple relays (servers). Those servers can never guarantee your note will be kept forver. Or when they go offline your note is offline with them.

A good practice I believe is to have your own relay. It doesn't have to be public but it will save your data (notes, followers...).

See nostrapps.com there's an app called Citrine which will spin up a relay on your phone (android). Then take the url from there and add it to the list of your relays of your client.

Another option is to host on your personal hardware with start9 - which could be a bit more complicated.

Yep same

Maybe because of this events happening there:

"Finally, the month ends with more opportunities to sample the island's local cuisine at the week-long Machico Gastronomic Fair. This symbolic event offers entertainment and the opportunity to try some of the island's oriental dishes between July 26th and August 4th. On the 27th and 28th of July, the Quinta Magnólia garden will host the annual event "Clássicos na Magnólia", which will feature a spectacular display of well-preserved classic vehicles and motorcycles from Madeira collectors.

The "Concertos L" concert series, which combines traditional and contemporary musical styles with Portuguese and global music, returns to Estalagem da Ponta do Sol on the 27th and 31st of July, 14th, 21st and 28th of August, 14th and 28th of September and October 5th, 12th and 19th."