Would you want it recorded on Facebook or Twitter instead?
Yes, if I can delete them. FB and Twitter are facing a lot of legislative and regulatory pressure. All things are changing continuously.
I can sue, demand Facebook or Twitter, but how can I sue a blockchain? Laws don't exist on Steem, some stronger guy can come and downvote me forever, everytime. Take away my money and ruin my work of years with downvotes. This is an anarchy.
I have to agree with you to a large extent, there are always pros and cons to everything. Your content are yours and you have control over it. But we can't say that of Facebook, Youtube, Twitter, etc. However, I think things could improve in the future.