@talksina in terms of replacing Akismet, did you give Antispam Bee a try?
We‘ve developed it with privacy in mind, it’s 100% free and community-driven.
If there are any accessibility issues (and I’m not aware of any at this moment) we‘ll be more than happy to improve.
Antispam Bee
Antispam plugin with a sophisticated tool set for effective day to day comment and trackback spam-fighting. Build with data protection and privacy in …
WordPress.org (wordpress.org)