Why does it use <form> for links?

[G2G2G2G]

<form action=\"/wifi\" method=\"get\"><button>Configure WiFi</button></form><br/><form action=\"/0wifi\" method=\"get\"><button>Configure WiFi (No Scan)</button></form><br/><form action=\"/i\" method=\"get\"><button>Info</button></form><br/><form action=\"/r\" method=\"post\"><button>Reset</button></form>

vs

<a href=\"/wifi\"><button>Configure WiFi</button></a><a href=\"0wifi\"><button>Configure WiFi (No Scan)</button></a><a href=\"/i\"><button>Info</button></a><a href=\"/r\"><button>Reset</button></a>

Never seen that before