There will be always some peoples who are not happy.
No one can make everyone happy.
I do like all knowledge shared by you and also do respect for it.
We should look at peoples who are happy with it instead of looking at few which are not happy.
Peoples do also post angry reaction to me but i cant control emotions of someone else who are reacting knowingly or unknowingly, yes it do hurt but we should not give more importance to them as this is public forum, some will be happy and some will not be.
No one can make everyone happy unless the Engineers who read it or get the knowledge shared, understand what they are getting for Free.
I spoke with Forum Owners and they decided to make a Private Forum for Peoples who are really interested in getting Knowledge, this will be available soon as a section on this forum which is accessible only to Members who paid to get Premium membership to access this private knowledge section.
I would suggest, neglect the action of few people and do check how many peoples do really like your content.