Recruitment tips for start ups

Sometime back, I posted the following message on LinkedIn about the Recruitment of juniors and freshers for D10X

https://www.linkedin.com/feed/update/urn:li:activity:6588768606912372737

This post is about my experiences during this ‘recruitment attempt.’ The question I want to ask you. Are these everyday experiences?

1. Interested applicants don’t even read the full post/details before applying.
2. I updated the original post and asked everyone to refrain from ‘posting’ on LinkedIn Talent Search. Still, people kept on posting on LinkedIn talent search.  
4. I also asked for emailing the resume to contactme@d10x.io mail id. Still, candidates kept posting “I am interested” comments in the LinkedIn thread instead of emailing me.
5. If you are applying for a programming job, then you need to take a programming test. 
6. We sent applicants an email with 3 Code Kata problem statements and asked them to solve the problems in any programming language they chose. I wanted to see if they have an “aptitude for programming.” These are minimal problems. Something you can solve in half an hour. 
8. Approx. 3 out of 10 candidates responded back. Others (6-7 out of 10) did not respond despite their “I am interested” msgs. 
9. Rampant Copy/pasting of programming solutions:
10. Most of The candidates who sent the replies copied/pasted solutions from ‘geeks for geeks.’ Few could not even explain the logic. A few copied/pasted ‘half the code’ (some functions were called in the code, but the implementation of those functions was missing). If you can’t code binary search on your own and still expect a ‘high programming job,’ then it’s just not going to work.
11. Exorbitant salary expectations. 
12. Case in point: 1 year of experience in a nearly dead language. Mostly maintenance work. No profound experience in web development. Good analytical skills. Current salary: 12 lakh pa. Expected salary: 16-18 lakh. In a way, he is right to expect a higher salary than the current one but is expecting a 50% rise on an already high salary !!! What should I comment? Still, some candidates do get such hikes. May it just be my perception.
13. Are you really interested in Learning or just a high salary?
14. In a few cases, guys claim they want to change jobs because they want to learn. So I offered to give the same salary as the current one for the first 3 months. I promised a 20% raise after 3 months if he is good. If you are interested in Learning and really convinced that you will learn more in D10X, then you should be ready to demonstrate that you will learn more than the salary