How bad is a site ban if promoted incorrectly?

Question

Search Engine Optimization

I read about all the bans and everything else. It became interesting how terrible it is to block a site if it is promoted incorrectly, etc., etc., and how will it affect if many sites belong to one legal entity, even if they have no connection (from the word in general, like a directory site and data storage)?

Answer 1

Loss of time, traffic, customers.
All bans are removed by correcting the content.
You can always advertise the site in parallel through contextual advertising
about promotion can be found at https://seo-mob.ru/

Answer 2

Frightened by the complete loss of search traffic
Communication is not important

Answer 3

There is only one ban, because a ban is a complete exclusion of a site from the search engine index. You have to work very hard to get a ban. The rest is not bans, but search engine filters that affect traffic and positions.
Many sites of one owner can be PBN, a grid, and it happens that grids are fired by search engines and, accordingly, traffic from them drops to zero. Relevant for Google, especially for outdated grids with bad content, structure duplicates, suspicious link schemes, etc.