@arthur-schopen this is a link to The Complete Steemit Etiquette Guide I suggest you read it, pay special attention to point #7 "Don't post unrelated links in comments". This is the blockchain, and it took me about 15 seconds to see that you copied and pasted this exact comment into 5 posts in 3 minutes time.
Resist the temptation to try taking the spammy path.
Find posts that interest you.
Read and understand them.
If you have a comment that demonstrates to the author that you've read their post or comment, share it.
Rinse & Repeat.