Well in fact I always rent everything. If you buy, that's something that gives you some ties to a place. Having said that, having at least one proprietary house is a good practice, since I will end up without a pension, but I'm going to inherit one, and in case I will sell that one and buy another one
The Hacienda or any other Fiscal Authority is not made of idiots:︂ They will go to the company and dig who's behind it and if the travel︃ blog makes any money. And if you start faking things, you start getting into criminal︄ offence, so you start risking jail time. Especially in your home country, if they put︅ eyes on you. My advice, stay away from luxury in Europe, if you want luxury,︆ Dubai is the place where you get it, because nobody will double check
I currently live 4 months in︌ Ibiza, 3 in Dubai, 3 in my home country and the rest depending on the︍ year, usually France, Switzerland and Greece. so yes you don't need to change every two︎ weeks, and as long as you lay low in the place where you risk most️ ( in my case it's my own country and spain ) not much can happen, you just have to respect the rules. But I am over 40, I've been doing this for 10 years, I'm sure I don't want family or kids, and if I ever wanted to settle down somewhere I would get 2 or 3 tax certificates in Dubai to be on the safe side and have clean money. But younger, more normal people, those who want a family and kids, need to be aware that at some point perpetual travelling becomes impossible. And you must think well about that point, because if︀ you re-enter your home country with a lot of money, controls will be made. Remember︁ that if you are not tax resident anywhere, you are technically speaking tax resident in︂ your home country, so never go back there.