I found this tutorial not long ago from a user named @ruah - he's a fellow Filipino and he did good on it, it was superb - that post deserves a lot of attention, really. I could try following the steps but I don't have the same application he's using so I did this my own way - with his work as an inspiration.
Kudos to him - I wish I can do things like that in multiple software but I'm limited to what I have.
I used Adobe Photoshop CS6 on this work. I simply added a gradient-filled background (black to dark grey), a text layer with "Welcome to Steemit" in it using the font Quite the Thief (I like how this font looks like - it's always used by the @steemph group here too), and looked up a flaming background over the web.
I created a clipping mask for the flames to go on top of the text layer. Then, I made a Video Timeline using frames. Used 'No Delay' and arranged the flames so that it will go from side to side looped infinitely. I added effects to the flame layer to give it a more defined look.
Afterwards, I decided to add a glow effect behind the text layer, simply by duplicating the same text layer, adjusting the color to a warmer and lighter one and applying blur to it. I could have used Outer Glow on the text layer but I settled for this method instead.