What are plugins in WordPress?
What would we do without Google?
The definition is a little complex for my taste...basically, a plug-in is just extra. WA has preinstalled the necessities for you, just activate them. You do not need to keep them if you do not want to. I don't use Si Captcha, some people also use a different SEO plug-in. That is more than okay.
Plug-ins not only make your website look more professional but they also make some things more convenient! Because honestly, who would rather do things the harder way? Don't say that you would just because you want to sound tough(:
Starter Members! Remember that you cannot install additional plugins.
Shall we move on?