we need to face the fact , number of people can upvote or would upvote is limited . Plus we have the other 2 factor already putting us in a disadvantage .

vote selling
The vote selling have cause most steemian do be less interact . It is consider smart to sell upvote than to upvote someone post because when you sell upvote , you get SBD as well.

7 days payout limit
The 7 days payout is not easy before vote selling happen . Now with vote selling , this just make recovering cost even harder.

If you are covering subject that is not everyone cup of tea like me in numismatic , it will be risky especially if your content involve cost to create . It is like gambling in a unfavorable position by going all in.