Bad manners?
How many people do you think HR have to deal with this influx of applications? How many applicants would you imagine they have? These all have to be sorted out, people apply for posts they are not qualified for E.G. Application for 757 rated position by 737 qualified pilot, this has to be processed and if HR are feeling kind moved to the correct place. On top of this people without the correct licences apply and swell the workload, despite all the posts on here from people who are very swift to knock the company, a great number have applied and do wish to become part of Jet2.
The airline is not being bad mannered, the HR and Pilot Managment staff involved with this also have to continue with the day job.