Are those companies that recruit online every day deceptive?

Not everything is a lie. This has something to do with the management of recruitment websites. No one on some websites can stop designing jobs. If you stop and start again, you have to calculate the number of positions (the number of positions that can be issued is limited). When you don't have a position, if you want to recruit people, you must buy a position from the recruitment website.

Recruiting people every day may be due to high turnover rate, business expansion, or deception.

If a company calls you, you can investigate it online.