You don't have to click the button every time. It is 100% up to you if you see no signature, full signature or a partial signature with the option to click to view.It's all going to take time to get used to, but one thing I'm not a fan of is the need to click a button to see the full signature on a members post. It seems to defeat the purpose of having a signature since many people link their personal YouTube page and such there. I'm far less likely to venture off to a link like that if it's not right there in front of me. Another example is your "Need admin assistance?" link. I wouldn't have really noticed it was there had I not clicked the show signature button.
If you want to adjust your preferences for signatures you can click on your avatar near the upper right-hand corner of the site and select account settings.
In the left side navigation, you will see an option for preferences. Click it.
Scroll down to content options and select your signature preferences.